cc: Implement deadine scheduling disabled by default

cc/trees/layer_tree_host_impl.cc

Index: cc/trees/layer_tree_host_impl.cc
diff --git a/cc/trees/layer_tree_host_impl.cc b/cc/trees/layer_tree_host_impl.cc
index 870b65d89ba7b123085028c34359d4afbf122131..aea7e332a69cc058c75f10574fc9891a81876833 100644
--- a/cc/trees/layer_tree_host_impl.cc
+++ b/cc/trees/layer_tree_host_impl.cc
@@ -169,6 +169,7 @@ LayerTreeHostImpl::LayerTreeHostImpl(
     RenderingStatsInstrumentation* rendering_stats_instrumentation)
     : client_(client),
       proxy_(proxy),
+      output_surface_lost_(true),
       input_handler_client_(NULL),
       did_lock_scrolling_layer_(false),
       should_bubble_scrolls_(false),
@@ -1347,7 +1348,7 @@ const RendererCapabilities& LayerTreeHostImpl::GetRendererCapabilities() const {
 }
 
 bool LayerTreeHostImpl::SwapBuffers(const LayerTreeHostImpl::FrameData& frame) {
-  if (frame.has_no_damage)
+  if (frame.has_no_damage || output_surface_lost_)

[Sami, 2013/08/30 13:49:06]

Could you explain why we'd need to avoid swapping a lost output surface?
Generally we only need to react to a lost surface if there is some GL state we
need to invalidate, but I don't think LTHI has anything like that.

[brianderson, 2013/09/03 22:51:47]

This was a change I pulled in from the big patch "just in case". I'll see if I
can remove it since this was added very early on and is likely no longer needed
since we have ACTION_DRAW_AND_SWAP_ABORT now.

     return false;
   renderer_->SwapBuffers();
   active_tree_->ClearLatencyInfo();
@@ -1390,6 +1391,7 @@ void LayerTreeHostImpl::DidLoseOutputSurface() {
   // TODO(jamesr): The renderer_ check is needed to make some of the
   // LayerTreeHostContextTest tests pass, but shouldn't be necessary (or
   // important) in production. We should adjust the test to not need this.
+  output_surface_lost_ = true;
   if (renderer_)
     client_->DidLoseOutputSurfaceOnImplThread();
 }
@@ -1624,6 +1626,7 @@ bool LayerTreeHostImpl::InitializeRenderer(
   tile_manager_.reset();
   resource_provider_.reset();
   output_surface_.reset();
+  output_surface_lost_ = true;
 
   if (!output_surface->BindToClient(this))
     return false;
@@ -1669,6 +1672,7 @@ bool LayerTreeHostImpl::InitializeRenderer(
 
   resource_provider_ = resource_provider.Pass();
   output_surface_ = output_surface.Pass();
+  output_surface_lost_ = false;
 
   client_->OnCanDrawStateChanged(CanDraw());