Flush pending writes on Skia scratch textures used in Chromium

content/renderer/media/android/webmediaplayer_android.cc

Index: content/renderer/media/android/webmediaplayer_android.cc
diff --git a/content/renderer/media/android/webmediaplayer_android.cc b/content/renderer/media/android/webmediaplayer_android.cc
index ca276ca2674f18a24f7c965e447db0cbbe570f6e..a80fc132b6d2eba1d6a5d7433bc67106b4e32fa1 100644
--- a/content/renderer/media/android/webmediaplayer_android.cc
+++ b/content/renderer/media/android/webmediaplayer_android.cc
@@ -117,6 +117,11 @@ bool AllocateSkBitmapTexture(GrContext* gr,
   if (!texture.get())
     return false;
 
+  // A recycled texture may have pending writes. Make sure they are flushed
+  // before the texture is handed over for subsequent operations done outside
+  // of Skia.
+  texture->flushWrites();
+
   SkImageInfo info = SkImageInfo::MakeN32Premul(desc.fWidth, desc.fHeight);
   SkGrPixelRef* pixel_ref = SkNEW_ARGS(SkGrPixelRef, (info, texture.get()));
   if (!pixel_ref)