command_buffer: Defer restoring of FBO bindings when changing virtual contexts

gpu/command_buffer/service/texture_manager.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/texture_manager.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 2740 matching lines @@
     // Just set the level texture but mark the texture as uncleared.
     SetLevelInfo(
         texture_ref, args.target, args.level, args.internal_format, args.width,
         args.height, args.depth, args.border, args.format, args.type,
         gfx::Rect());
     texture_state->tex_image_failed = false;
     return;
   }
 
   if (texture->IsAttachedToFramebuffer()) {
-    framebuffer_state->clear_state_dirty = true;
+    framebuffer_state->NotifyBoundFramebuffersChanged();
   }
 
   if (texture_state->texsubimage_faster_than_teximage &&
       level_is_same && args.pixels && !unpack_buffer_bound) {
     {
       ScopedTextureUploadTimer timer(texture_state);
       if (args.command_type == DoTexImageArguments::kTexImage3D) {
         glTexSubImage3D(args.target, args.level, 0, 0, 0,
                         args.width, args.height, args.depth,
                         args.format, args.type, args.pixels);
@@ skipping 400 matching lines @@
 uint32_t TextureManager::GetServiceIdGeneration() const {
   return current_service_id_generation_;
 }
 
 void TextureManager::IncrementServiceIdGeneration() {
   current_service_id_generation_++;
 }
 
 }  // namespace gles2
 }  // namespace gpu