(not for commit) Simplified multi-threaded Ganesh with lock on Flush only.

content/common/gpu/client/gpu_channel_host.cc

 // Copyright (c) 2012 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/common/gpu/client/gpu_channel_host.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 84 matching lines @@
   //
   // TODO: Can we just always use sync_filter_ since we setup the channel
   //       without a main listener?
   if (factory_->IsMainThread()) {
     // http://crbug.com/125264
     base::ThreadRestrictions::ScopedAllowWait allow_wait;
     bool result = channel_->Send(message.release());
     if (!result)
       DVLOG(1) << "GpuChannelHost::Send failed: Channel::Send failed";
     return result;
-  } else if (base::MessageLoop::current()) {
+
+    // TODO(vmiura): Nasty hack, could be hazardous to health!
+    //} else if (base::MessageLoop::current()) {
+  } else {
     bool result = sync_filter_->Send(message.release());
     if (!result)
       DVLOG(1) << "GpuChannelHost::Send failed: SyncMessageFilter::Send failed";
     return result;
   }
 
+  LOG(ERROR) << "... GpuChannelHost::Send() failed!!!";
+
   return false;
 }
 
 CommandBufferProxyImpl* GpuChannelHost::CreateViewCommandBuffer(
     int32 surface_id,
     CommandBufferProxyImpl* share_group,
     const std::vector<int32>& attribs,
     const GURL& active_url,
     gfx::GpuPreference gpu_preference) {
   TRACE_EVENT1("gpu",
@@ skipping 264 matching lines @@
 
   listeners_.clear();
 }
 
 bool GpuChannelHost::MessageFilter::IsLost() const {
   AutoLock lock(lock_);
   return lost_;
 }
 
 }  // namespace content