Made OSMesa work on Mac for WebGL....

chrome/gpu/gpu_thread.cc

 // Copyright (c) 2010 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 "chrome/gpu/gpu_thread.h"
 
 #include <string>
 #include <vector>
 
 #include "app/gfx/gl/gl_context.h"
@@ skipping 87 matching lines @@
 }
 
 void GpuThread::OnEstablishChannel(int renderer_id) {
   scoped_refptr<GpuChannel> channel;
   IPC::ChannelHandle channel_handle;
   GPUInfo gpu_info;
 
   // Fail to establish a channel if some implementation of GL cannot be
   // initialized.
   if (gfx::GLContext::InitializeOneOff()) {
-    // Fail to establish channel if GPU stats cannot be retreived.
-    if (gpu_info_collector::CollectGraphicsInfo(&gpu_info)) {
-      child_process_logging::SetGpuInfo(gpu_info);
-      GpuChannelMap::const_iterator iter = gpu_channels_.find(renderer_id);
-      if (iter == gpu_channels_.end()) {
-        channel = new GpuChannel(renderer_id);
-      } else {
-        channel = iter->second;
-      }
+    if (!gpu_info_collector::CollectGraphicsInfo(&gpu_info))
+      LOG(WARNING) << "Could not collect GPU info.";
 
-      DCHECK(channel != NULL);
+    child_process_logging::SetGpuInfo(gpu_info);
+    GpuChannelMap::const_iterator iter = gpu_channels_.find(renderer_id);
 
-      if (channel->Init()) {
-        gpu_channels_[renderer_id] = channel;
-      } else {
-        channel = NULL;
-      }
+    if (iter == gpu_channels_.end())
+      channel = new GpuChannel(renderer_id);
+    else
+      channel = iter->second;
 
-      if (channel.get()) {
-        channel_handle.name = channel->GetChannelName();
+    DCHECK(channel != NULL);
+
+    if (channel->Init())
+      gpu_channels_[renderer_id] = channel;
+    else
+      channel = NULL;
+
+    if (channel.get()) {
+      channel_handle.name = channel->GetChannelName();
 #if defined(OS_POSIX)
-        // On POSIX, pass the renderer-side FD. Also mark it as auto-close so
-        // that it gets closed after it has been sent.
-        int renderer_fd = channel->DisownRendererFd();
-        channel_handle.socket = base::FileDescriptor(renderer_fd, true);
+      // On POSIX, pass the renderer-side FD. Also mark it as auto-close so
+      // that it gets closed after it has been sent.
+      int renderer_fd = channel->DisownRendererFd();
+      channel_handle.socket = base::FileDescriptor(renderer_fd, true);
 #endif
-      }
     }
   }
 
   Send(new GpuHostMsg_ChannelEstablished(channel_handle, gpu_info));
 }
 
 void GpuThread::OnSynchronize() {
   Send(new GpuHostMsg_SynchronizeReply());
 }
 
@@ skipping 25 matching lines @@
 void GpuThread::OnCrash() {
   // Good bye, cruel world.
   volatile int* it_s_the_end_of_the_world_as_we_know_it = NULL;
   *it_s_the_end_of_the_world_as_we_know_it = 0xdead;
 }
 
 void GpuThread::OnHang() {
   for (;;)
     PlatformThread::Sleep(1000);
 }