Make invalidateFramebuffer no-op for DEPTH_STENCIL attachment

gpu/command_buffer/service/renderbuffer_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/renderbuffer_manager.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/logging.h"
@@ skipping 93 matching lines @@
                     sizeof(signature_data));
 }
 
 Renderbuffer::Renderbuffer(RenderbufferManager* manager,
                            GLuint client_id,
                            GLuint service_id)
     : manager_(manager),
       client_id_(client_id),
       service_id_(service_id),
       cleared_(true),
+      depth_cleared_(true),
+      stencil_cleared_(true),
       has_been_bound_(false),
       samples_(0),
       internal_format_(GL_RGBA4),
       width_(0),
       height_(0) {
   manager_->StartTracking(this);
 }
 
 Renderbuffer::~Renderbuffer() {
   if (manager_) {
@@ skipping 44 matching lines @@
   DCHECK(renderbuffer);
   if (!renderbuffer->cleared()) {
     --num_uncleared_renderbuffers_;
   }
   renderbuffer->set_cleared(cleared);
   if (!renderbuffer->cleared()) {
     ++num_uncleared_renderbuffers_;
   }
 }
 
+void RenderbufferManager::SetCleared(Renderbuffer* renderbuffer,
+                                     GLenum attachment,
+                                     bool cleared) {
+  DCHECK(renderbuffer);
+  if (!renderbuffer->cleared()) {
+    --num_uncleared_renderbuffers_;
+  }
+  renderbuffer->set_cleared(attachment, cleared);
+  if (!renderbuffer->cleared()) {
+    ++num_uncleared_renderbuffers_;
+  }
+}
+
 void RenderbufferManager::CreateRenderbuffer(
     GLuint client_id, GLuint service_id) {
   scoped_refptr<Renderbuffer> renderbuffer(
       new Renderbuffer(this, client_id, service_id));
   std::pair<RenderbufferMap::iterator, bool> result =
       renderbuffers_.insert(std::make_pair(client_id, renderbuffer));
   DCHECK(result.second);
   if (!renderbuffer->cleared()) {
     ++num_uncleared_renderbuffers_;
   }
@@ skipping 79 matching lines @@
     auto guid = gl::GetGLRenderbufferGUIDForTracing(
         memory_tracker_->ShareGroupTracingGUID(), client_renderbuffer_id);
     pmd->CreateSharedGlobalAllocatorDump(guid);
     pmd->AddOwnershipEdge(dump->guid(), guid);
   }
   return true;
 }
 
 }  // namespace gles2
 }  // namespace gpu