api-impl: misc APIs for WhatsApp media chooser Activities

src/api-impl/android/graphics/BitmapFactory.java

@@ -626,9 +626,9 @@ public class BitmapFactory {
 
 		Trace.traceBegin(Trace.TRACE_TAG_GRAPHICS, "decodeFileDescriptor");
 		try {
-			if (nativeIsSeekable(fd)) {
-				bm = nativeDecodeFileDescriptor(fd, outPadding, opts);
-			} else {
+			//if (nativeIsSeekable(fd)) {
+			//	bm = nativeDecodeFileDescriptor(fd, outPadding, opts);
+			//} else {
 				FileInputStream fis = new FileInputStream(fd);
 				try {
 					bm = decodeStreamInternal(fis, outPadding, opts);
@@ -638,7 +638,7 @@ public class BitmapFactory {
 					} catch (Throwable t) { /* ignore */
 					}
 				}
-			}
+			//}
 
 			if (bm == null && opts != null && opts.inBitmap != null) {
 				throw new IllegalArgumentException("Problem decoding into existing bitmap");

src/api-impl/android/graphics/Canvas.java

@@ -474,6 +474,10 @@ public class Canvas {
 		return save();
 	}
 
+	public int saveLayer(RectF bounds, Paint paint) {
+		return save();
+	}
+
 	public void drawOval(RectF oval, Paint paint) {
 		Log.w("Canvas", "STUB: drawOval");
 	}

src/api-impl/android/graphics/drawable/TransitionDrawable.java

@@ -1,10 +1,20 @@
 package android.graphics.drawable;
 
-public class TransitionDrawable extends Drawable {
+import android.graphics.Canvas;
 
-	public TransitionDrawable(Drawable[] layers) {}
+public class TransitionDrawable extends LayerDrawable {
+
+	public TransitionDrawable(Drawable[] layers) {
+		super(layers);
+	}
 
 	public void setCrossFadeEnabled(boolean enabled) {}
 
 	public void startTransition(int duration) {}
+
+	@Override
+	public void draw(Canvas canvas) {
+		// always draw the target drawable
+		mLayerState.mChildren[1].mDrawable.draw(canvas);
+	}
 }