During image destroy, delete textures only if we have a GL context.

gpu/command_buffer/service/image_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/image_manager.h"
 
 #include "ui/gl/gl_image.h"
 
 namespace gpu {
 namespace gles2 {
 
 ImageManager::ImageManager() : release_after_use_(false) {
 }
 
 ImageManager::~ImageManager() {
 }
 
+void ImageManager::Destroy(bool have_context) {
+  for (GLImageMap::const_iterator iter = gl_images_.begin();
+       iter != gl_images_.end();
+       ++iter)
+    iter->second.get()->Destroy(have_context);

[reveman, 2014/05/29 16:30:34]

should we drop the ref here too?

+}
+
 void ImageManager::RegisterGpuMemoryBuffer(int32 id,
                                            gfx::GpuMemoryBufferHandle buffer,
                                            size_t width,
                                            size_t height,
                                            unsigned internalformat) {
   if (id <= 0) {
     DVLOG(0) << "Cannot register GPU memory buffer with non-positive ID.";
     return;
   }
 
@@ skipping 34 matching lines @@
 
   return NULL;
 }
 
 void ImageManager::SetReleaseAfterUse() {
   release_after_use_ = true;
 }
 
 }  // namespace gles2
 }  // namespace gpu