Move a bunch of code in content\common (as well as a few left in renderer) to the content namespace.

content/common/gpu/image_transport_surface_mac.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 "content/common/gpu/image_transport_surface.h"
 
 #include "base/mac/scoped_cftyperef.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/common/gpu/gpu_messages.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gl/gl_bindings.h"
 #include "ui/gl/gl_context.h"
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_surface_cgl.h"
 #include "ui/surface/io_surface_support_mac.h"
 
+namespace content {
 namespace {
 
 // IOSurface dimensions will be rounded up to a multiple of this value in order
 // to reduce memory thrashing during resize. This must be a power of 2.
 const uint32 kIOSurfaceDimensionRoundup = 64;
 
 int RoundUpSurfaceDimension(int number) {
   DCHECK(number >= 0);
   // Cast into unsigned space for portable bitwise ops.
   uint32 unsigned_number = static_cast<uint32>(number);
@@ skipping 402 matching lines @@
     default:
       NOTREACHED();
       return NULL;
   }
   if (surface->Initialize())
     return surface;
   else
     return NULL;
 }
 
+}  // namespace content
+
 #endif  // defined(USE_GPU)