Backed out changeset fa6ef0b63025 (bug 889515) for OSX browser-chrome bustage on a CLOSED TREE

--HG--
extra : amend_source : f0064ef485170a679744ea3e211535a9d58f0fc9

gfx/layers/client/ClientLayerManager.cpp

@@ -232,16 +232,6 @@ ClientLayerManager::EndEmptyTransaction(EndTransactionFlags aFlags)
   return true;
 }
 
-CompositorChild *
-ClientLayerManager::GetRemoteRenderer()
-{
-  if (!mWidget) {
-    return nullptr;
-  }
-
-  return mWidget->GetRemoteRenderer();
-}
-
 void 
 ClientLayerManager::MakeSnapshotIfRequired()
 {
@@ -249,7 +239,7 @@ ClientLayerManager::MakeSnapshotIfRequired()
     return;
   }
   if (mWidget) {
-    if (CompositorChild* remoteRenderer = GetRemoteRenderer()) {
+    if (CompositorChild* remoteRenderer = mWidget->GetRemoteRenderer()) {
       nsIntRect bounds;
       mWidget->GetBounds(bounds);
       SurfaceDescriptor inSnapshot, snapshot;

gfx/layers/client/ClientLayerManager.h

@@ -53,11 +53,6 @@ public:
   virtual already_AddRefed<ColorLayer> CreateColorLayer();
   virtual already_AddRefed<RefLayer> CreateRefLayer();
 
-  virtual TextureFactoryIdentifier GetTextureFactoryIdentifier() MOZ_OVERRIDE
-  {
-    return mTextureFactoryIdentifier;
-  }
-
   virtual void FlushRendering() MOZ_OVERRIDE;
 
   virtual bool NeedsWidgetInvalidation() MOZ_OVERRIDE { return false; }
@@ -94,8 +89,6 @@ public:
   void* GetThebesLayerCallbackData() const
   { return mThebesLayerCallbackData; }
 
-  CompositorChild *GetRemoteRenderer();
-
   /**
    * Called for each iteration of a progressive tile update. Fills
    * aViewport, aScaleX and aScaleY with the current scale and viewport

gfx/layers/ipc/CompositableForwarder.h

@@ -40,6 +40,10 @@ public:
   typedef gfxASurface::gfxContentType gfxContentType;
 
   CompositableForwarder()
+  : mMaxTextureSize(0)
+  , mCompositorBackend(layers::LAYERS_NONE)
+  , mSupportsTextureBlitting(false)
+  , mSupportsPartialUploads(false)
   {}
 
   /**
@@ -146,7 +150,7 @@ public:
   /**
    * Returns the maximum texture size supported by the compositor.
    */
-  virtual int32_t GetMaxTextureSize() const { return mTextureFactoryIdentifier.mMaxTextureSize; }
+  virtual int32_t GetMaxTextureSize() const { return mMaxTextureSize; }
 
   bool IsOnCompositorSide() const MOZ_OVERRIDE { return false; }
 
@@ -157,21 +161,24 @@ public:
    */
   LayersBackend GetCompositorBackendType() const
   {
-    return mTextureFactoryIdentifier.mParentBackend;
+    return mCompositorBackend;
   }
 
   bool SupportsTextureBlitting() const
   {
-    return mTextureFactoryIdentifier.mSupportsTextureBlitting;
+    return mSupportsTextureBlitting;
   }
 
   bool SupportsPartialUploads() const
   {
-    return mTextureFactoryIdentifier.mSupportsPartialUploads;
+    return mSupportsPartialUploads;
   }
 
 protected:
-  TextureFactoryIdentifier mTextureFactoryIdentifier;
+  uint32_t mMaxTextureSize;
+  LayersBackend mCompositorBackend;
+  bool mSupportsTextureBlitting;
+  bool mSupportsPartialUploads;
 };
 
 } // namespace

gfx/layers/ipc/CompositorParent.cpp

@@ -36,6 +36,7 @@ namespace layers {
 // FIXME/bug 774386: we're assuming that there's only one
 // CompositorParent, but that's not always true.  This assumption only
 // affects CrossProcessCompositorParent below.
+static CompositorParent* sCurrentCompositor;
 static Thread* sCompositorThread = nullptr;
 // manual reference count of the compositor thread.
 static int sCompositorThreadRefCount = 0;
@@ -152,6 +153,9 @@ CompositorParent::CompositorParent(nsIWidget* aWidget,
   CompositorLoop()->PostTask(FROM_HERE, NewRunnableFunction(&AddCompositor,
                                                           this, &mCompositorID));
 
+  if (!sCurrentCompositor) {
+    sCurrentCompositor = this;
+  }
   ++sCompositorThreadRefCount;
 }
 
@@ -165,6 +169,9 @@ CompositorParent::~CompositorParent()
 {
   MOZ_COUNT_DTOR(CompositorParent);
 
+  if (this == sCurrentCompositor) {
+    sCurrentCompositor = NULL;
+  }
   ReleaseCompositorThread();
 }
 
@@ -670,19 +677,6 @@ CompositorParent::SetTimeAndSampleAnimations(TimeStamp aTime, bool aIsTesting)
 typedef map<uint64_t, CompositorParent::LayerTreeState> LayerTreeMap;
 static LayerTreeMap sIndirectLayerTrees;
 
-bool
-CompositorParent::RecvNotifyChildCreated(const uint64_t& child)
-{
-  NotifyChildCreated(child);
-  return true;
-}
-
-void
-CompositorParent::NotifyChildCreated(uint64_t aChild)
-{
-  sIndirectLayerTrees[aChild].mParent = this;
-}
-
 /*static*/ uint64_t
 CompositorParent::AllocateLayerTreeId()
 {
@@ -716,7 +710,7 @@ UpdateControllerForLayersId(uint64_t aLayersId,
 
   // Notify the AsyncPanZoomController about the current compositor so that it
   // can request composites off the compositor thread.
-  aController->SetCompositorParent(sIndirectLayerTrees[aLayersId].mParent);
+  aController->SetCompositorParent(sCurrentCompositor);
 }
 
 /*static*/ void
@@ -758,7 +752,6 @@ public:
   virtual bool RecvStop() MOZ_OVERRIDE { return true; }
   virtual bool RecvPause() MOZ_OVERRIDE { return true; }
   virtual bool RecvResume() MOZ_OVERRIDE { return true; }
-  virtual bool RecvNotifyChildCreated(const uint64_t& child) MOZ_OVERRIDE;
   virtual bool RecvMakeSnapshot(const SurfaceDescriptor& aInSnapshot,
                                 SurfaceDescriptor* aOutSnapshot)
   { return true; }
@@ -858,7 +851,7 @@ CrossProcessCompositorParent::AllocPLayerTransactionParent(const LayersBackend&
 {
   MOZ_ASSERT(aId != 0);
 
-  nsRefPtr<LayerManager> lm = sIndirectLayerTrees[aId].mParent->GetLayerManager();
+  nsRefPtr<LayerManager> lm = sCurrentCompositor->GetLayerManager();
   *aTextureFactoryIdentifier = lm->GetTextureFactoryIdentifier();
   return new LayerTransactionParent(lm->AsLayerManagerComposite(), this, aId);
 }
@@ -872,13 +865,6 @@ CrossProcessCompositorParent::DeallocPLayerTransactionParent(PLayerTransactionPa
   return true;
 }
 
-bool
-CrossProcessCompositorParent::RecvNotifyChildCreated(const uint64_t& child)
-{
-  sIndirectLayerTrees[child].mParent->NotifyChildCreated(child);
-  return true;
-}
-
 void
 CrossProcessCompositorParent::ShadowLayersUpdated(
   LayerTransactionParent* aLayerTree,
@@ -893,7 +879,7 @@ CrossProcessCompositorParent::ShadowLayersUpdated(
   }
   UpdateIndirectTree(id, shadowRoot, aTargetConfig, isFirstPaint);
 
-  sIndirectLayerTrees[id].mParent->NotifyShadowTreeTransaction();
+  sCurrentCompositor->NotifyShadowTreeTransaction();
 }
 
 void

gfx/layers/ipc/CompositorParent.h

@@ -53,7 +53,6 @@ public:
   virtual bool RecvStop() MOZ_OVERRIDE;
   virtual bool RecvPause() MOZ_OVERRIDE;
   virtual bool RecvResume() MOZ_OVERRIDE;
-  virtual bool RecvNotifyChildCreated(const uint64_t& child) MOZ_OVERRIDE;
   virtual bool RecvMakeSnapshot(const SurfaceDescriptor& aInSnapshot,
                                 SurfaceDescriptor* aOutSnapshot);
   virtual bool RecvFlushRendering() MOZ_OVERRIDE;
@@ -75,8 +74,6 @@ public:
 
   LayerManagerComposite* GetLayerManager() { return mLayerManager; }
 
-  void NotifyChildCreated(uint64_t aChild);
-
   void AsyncRender();
 
   // Can be called from any thread
@@ -155,7 +152,6 @@ public:
   struct LayerTreeState {
     nsRefPtr<Layer> mRoot;
     nsRefPtr<AsyncPanZoomController> mController;
-    CompositorParent *mParent;
     TargetConfig mTargetConfig;
   };
 

gfx/layers/ipc/PCompositor.ipdl

@@ -43,8 +43,6 @@ parent:
   sync Pause();
   sync Resume();
 
-  async NotifyChildCreated(uint64_t id);
-
   // Make a snapshot of the content that would have been drawn to our
   // render target at the time this message is received.  If the size
   // or format of |inSnapshot| doesn't match our render target,

gfx/layers/ipc/ShadowLayers.cpp

@@ -160,7 +160,10 @@ struct AutoTxnEnd {
 void
 CompositableForwarder::IdentifyTextureHost(const TextureFactoryIdentifier& aIdentifier)
 {
-  mTextureFactoryIdentifier = aIdentifier;
+  mMaxTextureSize = aIdentifier.mMaxTextureSize;
+  mCompositorBackend = aIdentifier.mParentBackend;
+  mSupportsTextureBlitting = aIdentifier.mSupportsTextureBlitting;
+  mSupportsPartialUploads = aIdentifier.mSupportsPartialUploads;
 }
 
 ShadowLayerForwarder::ShadowLayerForwarder()

layout/ipc/RenderFrameParent.cpp

@@ -26,8 +26,6 @@
 #include "nsViewportFrame.h"
 #include "RenderFrameParent.h"
 #include "mozilla/layers/LayerManagerComposite.h"
-#include "mozilla/layers/CompositorChild.h"
-#include "ClientLayerManager.h"
 
 typedef nsContentView::ViewConfig ViewConfig;
 using namespace mozilla::dom;
@@ -604,7 +602,7 @@ RenderFrameParent::RenderFrameParent(nsFrameLoader* aFrameLoader,
 
   nsRefPtr<LayerManager> lm = GetFrom(mFrameLoader);
   // Perhaps the document containing this frame currently has no presentation?
-  if (lm && lm->GetBackendType() == LAYERS_CLIENT) {
+  if (lm && lm->AsLayerManagerComposite()) {
     *aTextureFactoryIdentifier = lm->GetTextureFactoryIdentifier();
   } else {
     *aTextureFactoryIdentifier = TextureFactoryIdentifier();
@@ -614,10 +612,6 @@ RenderFrameParent::RenderFrameParent(nsFrameLoader* aFrameLoader,
     // Our remote frame will push layers updates to the compositor,
     // and we'll keep an indirect reference to that tree.
     *aId = mLayersId = CompositorParent::AllocateLayerTreeId();
-    if (lm && lm->GetBackendType() == LAYERS_CLIENT) {
-      ClientLayerManager *clientManager = static_cast<ClientLayerManager*>(lm.get());
-      clientManager->GetRemoteRenderer()->SendNotifyChildCreated(mLayersId);
-    }
     if (aScrollingBehavior == ASYNC_PAN_ZOOM) {
       mContentController = new RemoteContentController(this);
       mPanZoomController = new AsyncPanZoomController(