Move test-only stuff from cc/debug/ to cc/test

cc/test/fake_web_graphics_context_3d.cc

 // Copyright 2013 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 "cc/debug/fake_web_graphics_context_3d.h"
+#include "cc/test/fake_web_graphics_context_3d.h"
 
 #include "base/logging.h"
 #include "third_party/khronos/GLES2/gl2.h"
 
 using WebKit::WGC3Dboolean;
 using WebKit::WGC3Denum;
 using WebKit::WGC3Dsizei;
 using WebKit::WebGLId;
 using WebKit::WebGraphicsContext3D;
 
@@ skipping 348 matching lines @@
      WebKit::WGC3Denum internalformat) {
   return 0;
 }
 
 void* FakeWebGraphicsContext3D::mapImageCHROMIUM(WebKit::WGC3Duint image_id,
                                                  WebKit::WGC3Denum access) {
   return 0;
 }
 
 }  // namespace cc