GPU: Only restore one texture unit in ScopedTextureBinder.

gpu/command_buffer/service/gles2_cmd_decoder.cc

 // 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.
 
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 
 #include <stdio.h>
 
 #include <algorithm>
 #include <list>
@@ skipping 563 matching lines @@
   virtual Capabilities GetCapabilities() OVERRIDE;
   virtual void RestoreState(const ContextState* prev_state) const OVERRIDE;
 
   virtual void RestoreActiveTexture() const OVERRIDE {
     state_.RestoreActiveTexture();
   }
   virtual void RestoreAllTextureUnitBindings(
       const ContextState* prev_state) const OVERRIDE {
     state_.RestoreAllTextureUnitBindings(prev_state);
   }
+  virtual void RestoreActiveTextureUnitBinding(
+      unsigned int target) const OVERRIDE {
+    state_.RestoreActiveTextureUnitBinding(target);
+  }
   virtual void RestoreAttribute(unsigned index) const OVERRIDE {
     state_.RestoreAttribute(index);
   }
   virtual void RestoreBufferBindings() const OVERRIDE {
     state_.RestoreBufferBindings();
   }
   virtual void RestoreGlobalState() const OVERRIDE {
     state_.RestoreGlobalState();
   }
   virtual void RestoreProgramBindings() const OVERRIDE {
@@ skipping 9950 matching lines @@
   DoDidUseTexImageIfNeeded(texture, texture->target());
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "gpu/command_buffer/service/gles2_cmd_decoder_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu