cc: Detect miss-behaving fence extensions when using 1-copy rasterizer.

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 <limits>
 
 #include "base/basictypes.h"
@@ skipping 1217 matching lines @@
   // TODO(reveman): We should avoid keeping around unused resources if
   // possible. crbug.com/224475
   // Unused limit is calculated from soft-limit, as hard-limit may
   // be very high and shouldn't typically be exceeded.
   size_t unused_memory_limit_in_bytes = static_cast<size_t>(
       (static_cast<int64>(global_tile_state_.soft_memory_limit_in_bytes) *
        settings_.max_unused_resource_memory_percentage) /
       100);
 
   DCHECK(resource_pool_);
-  resource_pool_->CheckBusyResources();
+  resource_pool_->CheckBusyResources(false);
   // Soft limit is used for resource pool such that memory returns to soft
   // limit after going over.
   resource_pool_->SetResourceUsageLimits(
       global_tile_state_.soft_memory_limit_in_bytes,
       unused_memory_limit_in_bytes,
       global_tile_state_.num_resources_limit);
 
   // Release all staging resources when invisible.
   if (staging_resource_pool_) {
-    staging_resource_pool_->CheckBusyResources();
+    staging_resource_pool_->CheckBusyResources(false);
     staging_resource_pool_->SetResourceUsageLimits(
         std::numeric_limits<size_t>::max(),
         std::numeric_limits<size_t>::max(),
         visible_ ? GetMaxStagingResourceCount() : 0);
   }
 
   DidModifyTilePriorities();
 }
 
 void LayerTreeHostImpl::DidModifyTilePriorities() {
@@ skipping 191 matching lines @@
   // TODO(piman): We may need to do some validation on this ack before
   // processing it.
   if (renderer_)
     renderer_->ReceiveSwapBuffersAck(*ack);
 
   // In OOM, we now might be able to release more resources that were held
   // because they were exported.
   if (tile_manager_) {
     DCHECK(resource_pool_);
 
-    resource_pool_->CheckBusyResources();
+    resource_pool_->CheckBusyResources(false);
     resource_pool_->ReduceResourceUsage();
   }
   // If we're not visible, we likely released resources, so we want to
   // aggressively flush here to make sure those DeleteTextures make it to the
   // GPU process to free up the memory.
   if (output_surface_->context_provider() && !visible_) {
     output_surface_->context_provider()->ContextGL()->ShallowFlushCHROMIUM();
   }
 }
 
@@ skipping 2005 matching lines @@
 }
 
 void LayerTreeHostImpl::UnregisterPictureLayerImpl(PictureLayerImpl* layer) {
   std::vector<PictureLayerImpl*>::iterator it =
       std::find(picture_layers_.begin(), picture_layers_.end(), layer);
   DCHECK(it != picture_layers_.end());
   picture_layers_.erase(it);
 }
 
 }  // namespace cc