Extract Scoped{FrameBuffer,Texture}Binder and clean up TFP in VAVDA.

content/common/gpu/gl_scoped_binders.h

Index: content/common/gpu/gl_scoped_binders.h
diff --git a/content/common/gpu/gl_scoped_binders.h b/content/common/gpu/gl_scoped_binders.h
new file mode 100644
index 0000000000000000000000000000000000000000..bdcb7425218ff9562cc159a1519d768d8233f06f
--- /dev/null
+++ b/content/common/gpu/gl_scoped_binders.h
@@ -0,0 +1,30 @@
+// 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.
+
+#ifndef CONTENT_COMMON_GPU_GL_SCOPED_BINDERS_H_
+#define CONTENT_COMMON_GPU_GL_SCOPED_BINDERS_H_
+
+namespace content {
+
+class ScopedFrameBufferBinder {
+ public:
+  explicit ScopedFrameBufferBinder(unsigned int fbo);
+  ~ScopedFrameBufferBinder();
+
+ private:
+  int old_fbo_;
+};
+
+class ScopedTextureBinder {
+ public:
+  explicit ScopedTextureBinder(unsigned int id);
+  ~ScopedTextureBinder();
+
+ private:
+  int old_id_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_COMMON_GPU_GL_SCOPED_BINDERS_H_