Move a bunch of content\common code into the content namespace.

content/common/gpu/media/rendering_helper_gl.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/media/rendering_helper.h"
 
 #include <map>
 
 #if defined(OS_WIN) || defined(ARCH_CPU_ARMEL)
 #include "third_party/angle/include/EGL/egl.h"  // Must precede ui/gl headers!
@@ skipping 40 matching lines @@
   if (!result) {
     char log[4096];
     glGetShaderInfoLog(shader, arraysize(log), NULL, log);
     LOG(FATAL) << log;
   }
   glAttachShader(program, shader);
   glDeleteShader(shader);
   CHECK_EQ(static_cast<int>(glGetError()), GL_NO_ERROR);
 }
 
-namespace video_test_util {
+namespace content {
 
 class RenderingHelperGL : public RenderingHelper {
  public:
   RenderingHelperGL();
   virtual ~RenderingHelperGL();
 
   // Implement RenderingHelper.
   virtual void Initialize(bool suppress_swap_to_display,
                           int num_windows,
                           int width,
@@ skipping 381 matching lines @@
   for (size_t i = 0; i < x_windows_.size(); ++i) {
     CHECK(XUnmapWindow(x_display_, x_windows_[i]));
     CHECK(XDestroyWindow(x_display_, x_windows_[i]));
   }
   // Mimic newly created object.
   x_display_ = NULL;
   x_windows_.clear();
 #endif
 }
 
-}  // namespace video_test_util
+}  // namespace content