ui: Refactor GLImageEGL for usage by targets other than EGL_NATIVE_BUFFER_ANDROID.

ui/gl/gl_image_android_native_buffer.h

-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Copyright (c) 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_EGL_H_
-#define UI_GL_GL_IMAGE_EGL_H_
+#ifndef UI_GL_GL_IMAGE_ANDROID_NATIVE_BUFFER_H_
+#define UI_GL_GL_IMAGE_ANDROID_NATIVE_BUFFER_H_
 
-#include "ui/gl/gl_bindings.h"  // for EGLImageKHR
-#include "ui/gl/gl_image.h"
+#include "ui/gl/gl_image_egl.h"
 
 namespace gfx {
 
-class GL_EXPORT GLImageEGL : public GLImage {
+class GL_EXPORT GLImageAndroidNativeBuffer : public GLImageEGL {
  public:
-  explicit GLImageEGL(gfx::Size size);
+  explicit GLImageAndroidNativeBuffer(gfx::Size size);
 
   bool Initialize(gfx::GpuMemoryBufferHandle buffer);
 
   // Overridden from GLImage:
   virtual void Destroy() OVERRIDE;
-  virtual gfx::Size GetSize() OVERRIDE;
   virtual bool BindTexImage(unsigned target) OVERRIDE;
-  virtual void ReleaseTexImage(unsigned target) OVERRIDE;
   virtual void WillUseTexImage() OVERRIDE;
   virtual void DidUseTexImage() OVERRIDE;
-  virtual void WillModifyTexImage() OVERRIDE {}
-  virtual void DidModifyTexImage() OVERRIDE {}
   virtual void SetReleaseAfterUse() OVERRIDE;
 
  protected:
-  virtual ~GLImageEGL();
+  virtual ~GLImageAndroidNativeBuffer();
 
  private:
-  EGLImageKHR egl_image_;
-  gfx::Size size_;
   bool release_after_use_;
   bool in_use_;
   unsigned target_;
   EGLImageKHR egl_image_for_unbind_;
   GLuint texture_id_for_unbind_;
 
-  DISALLOW_COPY_AND_ASSIGN(GLImageEGL);
+  DISALLOW_COPY_AND_ASSIGN(GLImageAndroidNativeBuffer);
 };
 
 }  // namespace gfx
 
-#endif  // UI_GL_GL_IMAGE_EGL_H_
+#endif  // UI_GL_GL_IMAGE_ANDROID_NATIVE_BUFFER_H_