Android WebView: Fall back to idle uploads if draw functor table not set

android_webview/browser/gpu_memory_buffer_factory_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "android_webview/browser/gpu_memory_buffer_factory_impl.h"
 
 #include "android_webview/public/browser/draw_gl.h"
 #include "base/logging.h"
+#include "gpu/command_buffer/service/in_process_command_buffer.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 #include "ui/gfx/size.h"
 #include "ui/gl/gl_bindings.h"
 #include "ui/gl/gl_image_android_native_buffer.h"
 
 namespace android_webview {
 
 namespace {
 
 // Provides hardware rendering functions from the Android glue layer.
@@ skipping 86 matching lines @@
 
   return image;
 }
 
 // static
 void GpuMemoryBufferFactoryImpl::SetAwDrawGLFunctionTable(
     AwDrawGLFunctionTable* table) {
   g_gl_draw_functions = table;
 }
 
+bool GpuMemoryBufferFactoryImpl::Initialize() {
+  if (!g_gl_draw_functions)
+    return false;
+
+  gpu::InProcessCommandBuffer::SetGpuMemoryBufferFactory(this);
+  return true;
+}
+
 }  // namespace android_webview