cc: Drop ContextProvider references on the impl thread before quitting

cc/trees/layer_tree_host_impl.cc

 // Copyright 2011 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 "cc/trees/layer_tree_host_impl.h"
 
 #include <algorithm>
 
 #include "base/basictypes.h"
 #include "base/containers/hash_tables.h"
@@ skipping 24 matching lines @@
 #include "cc/output/delegating_renderer.h"
 #include "cc/output/gl_renderer.h"
 #include "cc/output/software_renderer.h"
 #include "cc/quads/render_pass_draw_quad.h"
 #include "cc/quads/shared_quad_state.h"
 #include "cc/quads/solid_color_draw_quad.h"
 #include "cc/quads/texture_draw_quad.h"
 #include "cc/resources/memory_history.h"
 #include "cc/resources/picture_layer_tiling.h"
 #include "cc/resources/prioritized_resource_manager.h"
+#include "cc/resources/texture_mailbox_deleter.h"
 #include "cc/resources/ui_resource_bitmap.h"
 #include "cc/scheduler/delay_based_time_source.h"
 #include "cc/scheduler/texture_uploader.h"
 #include "cc/trees/damage_tracker.h"
 #include "cc/trees/layer_tree_host.h"
 #include "cc/trees/layer_tree_host_common.h"
 #include "cc/trees/layer_tree_impl.h"
 #include "cc/trees/quad_culler.h"
 #include "cc/trees/single_thread_proxy.h"
 #include "cc/trees/tree_synchronizer.h"
@@ skipping 127 matching lines @@
           PrioritizedResourceManager::DefaultMemoryAllocationLimit(),
           ManagedMemoryPolicy::CUTOFF_ALLOW_EVERYTHING,
           0,
           ManagedMemoryPolicy::CUTOFF_ALLOW_NOTHING,
           ManagedMemoryPolicy::kDefaultNumResourcesLimit),
       pinch_gesture_active_(false),
       fps_counter_(FrameRateCounter::Create(proxy_->HasImplThread())),
       paint_time_counter_(PaintTimeCounter::Create()),
       memory_history_(MemoryHistory::Create()),
       debug_rect_history_(DebugRectHistory::Create()),
+      texture_mailbox_deleter_(new TextureMailboxDeleter),
       max_memory_needed_bytes_(0),
       last_sent_memory_visible_bytes_(0),
       last_sent_memory_visible_and_nearby_bytes_(0),
       last_sent_memory_use_bytes_(0),
       zero_budget_(false),
       device_scale_factor_(1.f),
       overhang_ui_resource_id_(0),
       overdraw_bottom_height_(0.f),
       device_viewport_valid_for_tile_management_(true),
       external_stencil_test_enabled_(false),
@@ skipping 1386 matching lines @@
     bool skip_gl_renderer) {
   DCHECK(!renderer_);
   if (output_surface->capabilities().delegated_rendering) {
     renderer_ = DelegatingRenderer::Create(
         this, &settings_, output_surface, resource_provider);
   } else if (output_surface->context_provider() && !skip_gl_renderer) {
     renderer_ = GLRenderer::Create(this,
                                    &settings_,
                                    output_surface,
                                    resource_provider,
+                                   texture_mailbox_deleter_.get(),
                                    settings_.highp_threshold_min,
                                    settings_.force_direct_layer_drawing);
   } else if (output_surface->software_device()) {
     renderer_ = SoftwareRenderer::Create(
         this, &settings_, output_surface, resource_provider);
   }
 
   if (renderer_) {
     renderer_->SetVisible(visible_);
     SetFullRootLayerDamage();
@@ skipping 1023 matching lines @@
 
 ResourceProvider::ResourceId LayerTreeHostImpl::ResourceIdForUIResource(
     UIResourceId uid) const {
   UIResourceMap::const_iterator iter = ui_resource_map_.find(uid);
   if (iter != ui_resource_map_.end())
     return iter->second;
   return 0;
 }
 
 }  // namespace cc