ppapi: Send sync point whenever the pepper texture changes.

content/renderer/pepper/ppb_graphics_3d_impl.cc

Index: content/renderer/pepper/ppb_graphics_3d_impl.cc
diff --git a/content/renderer/pepper/ppb_graphics_3d_impl.cc b/content/renderer/pepper/ppb_graphics_3d_impl.cc
index f143968c34d229f765915e5110f7ab80b6c3b188..8292f189dfe18ca3846c2a0bdbd475dcecb1c623 100644
--- a/content/renderer/pepper/ppb_graphics_3d_impl.cc
+++ b/content/renderer/pepper/ppb_graphics_3d_impl.cc
@@ -185,6 +185,10 @@ int32 PPB_Graphics3D_Impl::DoSwapBuffers() {
   if (gles2_impl())
     gles2_impl()->SwapBuffers();
 
+  // Since the backing texture has been updated, a new sync point should be
+  // inserted.
+  platform_context_->InsertSyncPointForBackingMailbox();
+
   if (bound_to_instance_) {
     // If we are bound to the instance, we need to ask the compositor
     // to commit our backing texture so that the graphics appears on the page.
@@ -193,7 +197,8 @@ int32 PPB_Graphics3D_Impl::DoSwapBuffers() {
     //
     // Don't need to check for NULL from GetPluginInstance since when we're
     // bound, we know our instance is valid.
-    HostGlobals::Get()->GetInstance(pp_instance())->CommitBackingTexture();
+    HostGlobals::Get()->GetInstance(pp_instance())->CommitBackingTexture(
+        InsertSyncPoint());

[danakj, 2014/03/03 23:31:42]

Oops, this gotta go.

[danakj, 2014/03/03 23:33:16]

Fixed.

     commit_pending_ = true;
   } else {
     // Wait for the command to complete on the GPU to allow for throttling.