ui/gl: Move GLImage into gl namespace.

ui/gl/gl_image_memory.h

 // Copyright 2014 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.
 
 #ifndef UI_GL_GL_IMAGE_MEMORY_H_
 #define UI_GL_GL_IMAGE_MEMORY_H_
 
 #include "ui/gl/gl_image.h"
 
 #include "base/numerics/safe_math.h"
 #include "ui/gfx/buffer_types.h"
 
 namespace gfx {
 
-class GL_EXPORT GLImageMemory : public GLImage {
+class GL_EXPORT GLImageMemory : public gl::GLImage {
  public:
   GLImageMemory(const Size& size, unsigned internalformat);
 
   bool Initialize(const unsigned char* memory, BufferFormat format);
 
   // Overridden from GLImage:
   void Destroy(bool have_context) override;
   Size GetSize() override;
   unsigned GetInternalFormat() override;
   bool BindTexImage(unsigned target) override;
@@ skipping 20 matching lines @@
   const unsigned internalformat_;
   const unsigned char* memory_;
   BufferFormat format_;
 
   DISALLOW_COPY_AND_ASSIGN(GLImageMemory);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GL_GL_IMAGE_MEMORY_H_