content: Add multi-proc surface texture support.

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index 838cb22dcb97e1d13b0e5636e8797c6f9a8deaa9..e0c389d049575573ea50890edf399ad901ed2c7f 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -1207,6 +1207,13 @@ scoped_ptr<gfx::GpuMemoryBuffer> RenderThreadImpl::AllocateGpuMemoryBuffer(
       internalformat).PassAs<gfx::GpuMemoryBuffer>();
 }
 
+void RenderThreadImpl::CreateSurfaceTexture(
+    int32 surface_texture_id,
+    base::ProcessHandle process_handle,
+    const CreateSurfaceTextureCallback& callback) {
+  NOTREACHED();
+}
+
 void RenderThreadImpl::DoNotSuspendWebKitSharedTimer() {
   suspend_webkit_shared_timer_ = false;
 }