Add a JS API for detecting WebGL availability.

content/browser/gpu/gpu_process_host.cc

 // Copyright (c) 2011 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 "content/browser/gpu/gpu_process_host.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/lazy_instance.h"
@@ skipping 355 matching lines @@
 
   return BrowserChildProcessHost::Send(msg);
 }
 
 bool GpuProcessHost::OnMessageReceived(const IPC::Message& message) {
   DCHECK(CalledOnValidThread());
   IPC_BEGIN_MESSAGE_MAP(GpuProcessHost, message)
     IPC_MESSAGE_HANDLER(GpuHostMsg_ChannelEstablished, OnChannelEstablished)
     IPC_MESSAGE_HANDLER(GpuHostMsg_CommandBufferCreated, OnCommandBufferCreated)
     IPC_MESSAGE_HANDLER(GpuHostMsg_DestroyCommandBuffer, OnDestroyCommandBuffer)
-    IPC_MESSAGE_HANDLER(GpuHostMsg_GraphicsInfoCollected,
-                        OnGraphicsInfoCollected)
     IPC_MESSAGE_UNHANDLED(RouteOnUIThread(message))
   IPC_END_MESSAGE_MAP()
 
   return true;
 }
 
 void GpuProcessHost::OnChannelConnected(int32 peer_pid) {
   BrowserChildProcessHost::OnChannelConnected(peer_pid);
   while (!queued_messages_.empty()) {
     Send(queued_messages_.front());
@@ skipping 107 matching lines @@
     gfx::PluginWindowHandle window, int32 renderer_id,
     int32 render_view_id) {
 #if defined(TOOLKIT_USES_GTK)
   ViewID view_id(renderer_id, render_view_id);
   SurfaceRefMap::iterator it = surface_refs_.find(view_id);
   if (it != surface_refs_.end())
     surface_refs_.erase(it);
 #endif  // defined(TOOLKIT_USES_GTK)
 }
 
-void GpuProcessHost::OnGraphicsInfoCollected(const content::GPUInfo& gpu_info) {
-  // OnGraphicsInfoCollected is sent back after the GPU process successfully
-  // initializes GL.
-  TRACE_EVENT0("test_gpu", "OnGraphicsInfoCollected");
-
-  GpuDataManager::GetInstance()->UpdateGpuInfo(gpu_info);
-}
-
 void GpuProcessHost::OnProcessLaunched() {
   // Send the GPU process handle to the UI thread before it has to
   // respond to any requests to establish a GPU channel. The response
   // to such requests require that the GPU process handle be known.
 
   base::ProcessHandle child_handle = in_process_ ?
       base::GetCurrentProcessHandle() : handle();
 
 #if defined(OS_WIN)
   DuplicateHandle(base::GetCurrentProcessHandle(),
@@ skipping 120 matching lines @@
   scoped_ptr<EstablishChannelCallback> wrapped_callback(callback);
   wrapped_callback->Run(channel_handle, renderer_process_for_gpu, gpu_info);
 }
 
 void GpuProcessHost::CreateCommandBufferError(
     CreateCommandBufferCallback* callback, int32 route_id) {
   scoped_ptr<GpuProcessHost::CreateCommandBufferCallback>
     wrapped_callback(callback);
   callback->Run(route_id);
 }