GPU client side changes for GpuMemoryBuffers

android_webview/browser/gpu_memory_buffer_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_impl.h"
 
 #include "android_webview/browser/gpu_memory_buffer_factory_impl.h"
 #include "android_webview/public/browser/draw_gl.h"
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 39 matching lines @@
 void* GpuMemoryBufferImpl::GetNativeBuffer() {
   DCHECK(buffer_id_ != 0);
   return g_gl_draw_functions->get_native_buffer(buffer_id_);
 }
 
 uint32 GpuMemoryBufferImpl::GetStride() {
   DCHECK(buffer_id_ != 0);
   return g_gl_draw_functions->get_stride(buffer_id_);
 }
 
+bool GpuMemoryBufferImpl::IsMapped() {
+  return false;
+}
+
 // static
 void GpuMemoryBufferImpl::SetAwDrawGLFunctionTable(
     AwDrawGLFunctionTable* table) {
   g_gl_draw_functions = table;
   gpu::SetProcessDefaultGpuMemoryBufferFactory(
       base::Bind(&CreateGpuMemoryBuffer));
 }
 
 }  // namespace android_webview