Use a singleton 1x1 offscreen surface for all TextureImageTransportSurface instances.

content/common/gpu/gpu_command_buffer_stub.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.
 
 #if defined(ENABLE_GPU)
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 353 matching lines @@
       OnInitializeFailed(reply_message);
       return;
     }
 #endif
 
     surface_ = ImageTransportSurface::CreateSurface(
         channel_->gpu_channel_manager(),
         this,
         handle_);
   } else {
-    surface_ = gfx::GLSurface::CreateOffscreenGLSurface(software_,
-                                                        gfx::Size(1, 1));
+    GpuChannelManager* manager = channel_->gpu_channel_manager();
+    surface_ = manager->GetDefaultOffscreenSurface();
   }
 
   if (!surface_.get()) {
     // Ensure the decoder is not destroyed if it is not initialized.
     decoder_.reset();
 
     DLOG(ERROR) << "Failed to create surface.\n";
     OnInitializeFailed(reply_message);
     return;
   }
@@ skipping 445 matching lines @@
     const GpuMemoryAllocation& allocation) {
   Send(new GpuCommandBufferMsg_SetMemoryAllocation(route_id_, allocation));
   // This can be called outside of OnMessageReceived, so the context needs to be
   // made current before calling methods on the surface.
   if (!surface_ || !MakeCurrent())
     return;
   surface_->SetFrontbufferAllocation(allocation.suggest_have_frontbuffer);
 }
 
 #endif  // defined(ENABLE_GPU)