Add calls to EnsureGPUMemoryAvailable into GLES2DecoderImpl

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 "base/logging.h"
 #include "base/debug/trace_event.h"
 #include "base/stringprintf.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
@@ skipping 18 matching lines @@
 RenderbufferManager::~RenderbufferManager() {
   DCHECK(renderbuffer_infos_.empty());
   // If this triggers, that means something is keeping a reference to
   // a RenderbufferInfo belonging to this.
   CHECK_EQ(renderbuffer_info_count_, 0u);
 
   DCHECK_EQ(0, num_uncleared_renderbuffers_);
 }
 
 size_t RenderbufferManager::RenderbufferInfo::EstimatedSize() {
-  return width_ * height_ * samples_ *
-         GLES2Util::RenderbufferBytesPerPixel(internal_format_);
+  uint32 size = 0;
+  GLES2Util::ComputeEstimatedRenderbufferSize(
+      width_, height_, samples_, internal_format_, &size);
+  return size;
 }
 
 void RenderbufferManager::RenderbufferInfo::AddToSignature(
     std::string* signature) const {
   DCHECK(signature);
   *signature += base::StringPrintf(
       "|Renderbuffer|internal_format=%04x|samples=%d|width=%d|height=%d",
       internal_format_, samples_, width_, height_);
 }
 
@@ skipping 89 matching lines @@
       return true;
     }
   }
   return false;
 }
 
 }  // namespace gles2
 }  // namespace gpu