Don't propagate simulated device resets to child processes. (bug 1245765 part 3, r=mattwoodrow)

dom/ipc/ContentChild.cpp

@@ -3254,15 +3254,6 @@ ContentChild::RecvEndDragSession(const bool& aDoneDrag,
   return true;
 }
 
-bool
-ContentChild::RecvTestGraphicsDeviceReset(const uint32_t& aResetReason)
-{
-#if defined(XP_WIN)
-  gfxPlatform::GetPlatform()->TestDeviceReset(DeviceResetReason(aResetReason));
-#endif
-  return true;
-}
-
 bool
 ContentChild::RecvPush(const nsCString& aScope,
                        const IPC::Principal& aPrincipal)

dom/ipc/ContentChild.h

@@ -610,8 +610,6 @@ public:
 
   virtual bool RecvGamepadUpdate(const GamepadChangeEvent& aGamepadEvent) override;
 
-  virtual bool RecvTestGraphicsDeviceReset(const uint32_t& aResetReason) override;
-
 private:
   virtual void ActorDestroy(ActorDestroyReason why) override;
 

dom/ipc/PContent.ipdl

@@ -710,12 +710,6 @@ child:
      */
     async GamepadUpdate(GamepadChangeEvent aGamepadEvent);
 
-    /**
-     * Tell the child that for testing purposes, a graphics device reset has
-     * occurred.
-     */
-    async TestGraphicsDeviceReset(uint32_t aReason);
-
     /**
      * Notify the child that presentation receiver has been launched with the
      * correspondent iframe.

gfx/thebes/gfxPlatform.h

@@ -635,10 +635,6 @@ public:
       return mCompositorBackend;
     }
 
-    // Trigger a test-driven graphics device reset.
-    virtual void TestDeviceReset(DeviceResetReason aReason)
-    {}
-
     // Return information on how child processes should initialize graphics
     // devices. Currently this is only used on Windows.
     virtual void GetDeviceInitData(mozilla::gfx::DeviceInitData* aOut);

gfx/thebes/gfxWindowsPlatform.cpp

@@ -470,17 +470,7 @@ gfxWindowsPlatform::HandleDeviceReset()
     return false;
   }
 
-  if (mHasFakeDeviceReset) {
-    if (XRE_IsParentProcess()) {
-      // Notify child processes that we got a device reset.
-      nsTArray<dom::ContentParent*> processes;
-      dom::ContentParent::GetAll(processes);
-
-      for (size_t i = 0; i < processes.Length(); i++) {
-        processes[i]->SendTestGraphicsDeviceReset(uint32_t(resetReason));
-      }
-    }
-  } else {
+  if (!mHasFakeDeviceReset) {
     Telemetry::Accumulate(Telemetry::DEVICE_RESET_REASON, uint32_t(resetReason));
   }
 

gfx/thebes/gfxWindowsPlatform.h

@@ -272,7 +272,7 @@ public:
     mozilla::gfx::FeatureStatus GetD2D1Status() const;
     unsigned GetD3D11Version();
 
-    void TestDeviceReset(DeviceResetReason aReason) override;
+    void TestDeviceReset(DeviceResetReason aReason);
 
     virtual already_AddRefed<mozilla::gfx::VsyncSource> CreateHardwareVsyncSource() override;
     static mozilla::Atomic<size_t> sD3D11MemoryUsed;