Move code in ui/gl/* from gfx:: to gl::

cc/test/pixel_test.h

 // 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 "base/files/file_util.h"
 #include "cc/output/gl_renderer.h"
 #include "cc/output/software_renderer.h"
 #include "cc/quads/render_pass.h"
 #include "cc/test/pixel_comparator.h"
 #include "cc/trees/layer_tree_settings.h"
@@ skipping 62 matching lines @@
   // RendererClient implementation.
   void SetFullRootLayerDamage() override {}
 
  private:
   void ReadbackResult(base::Closure quit_run_loop,
                       std::unique_ptr<CopyOutputResult> result);
 
   bool PixelsMatchReference(const base::FilePath& ref_file,
                             const PixelComparator& comparator);
 
-  std::unique_ptr<gfx::DisableNullDrawGLBindings> enable_pixel_output_;
+  std::unique_ptr<gl::DisableNullDrawGLBindings> enable_pixel_output_;
 };
 
 template<typename RendererType>
 class RendererPixelTest : public PixelTest {
  public:
   RendererType* renderer() {
     return static_cast<RendererType*>(renderer_.get());
   }
 
  protected:
@@ skipping 71 matching lines @@
   ForceExpandedViewport(gfx::Size(50, 50));
   ForceViewportOffset(gfx::Vector2d(10, 20));
 }
 
 typedef RendererPixelTest<GLRenderer> GLRendererPixelTest;
 typedef RendererPixelTest<SoftwareRenderer> SoftwareRendererPixelTest;
 
 }  // namespace cc
 
 #endif  // CC_TEST_PIXEL_TEST_H_