Revert of Converted video frame and image callbacks to use new sync tokens.

content/common/child_process_host_impl.h

Index: content/common/child_process_host_impl.h
diff --git a/content/common/child_process_host_impl.h b/content/common/child_process_host_impl.h
index f07e2a88a5e8bfb75c1f306b5130e2cebb11da57..d859323627af09b1863ef6717c3140730fe6c9fb 100644
--- a/content/common/child_process_host_impl.h
+++ b/content/common/child_process_host_impl.h
@@ -26,10 +26,6 @@
 
 namespace IPC {
 class MessageFilter;
-}
-
-namespace gpu {
-struct SyncToken;
 }
 
 namespace content {
@@ -105,7 +101,7 @@
                                  gfx::BufferUsage usage,
                                  gfx::GpuMemoryBufferHandle* handle);
   void OnDeletedGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
-                                const gpu::SyncToken& sync_token);
+                                uint32 sync_point);
 
   ChildProcessHostDelegate* delegate_;
   base::Process peer_process_;