Revert of cc: Delete all the RendererCapabilities.

cc/trees/layer_tree_host.h

Index: cc/trees/layer_tree_host.h
diff --git a/cc/trees/layer_tree_host.h b/cc/trees/layer_tree_host.h
index 200451db7b735c5981982b3676ad48abeb9302fa..0fb6d39aa9ca761f575dfc9af90b4793bdf64a51 100644
--- a/cc/trees/layer_tree_host.h
+++ b/cc/trees/layer_tree_host.h
@@ -34,6 +34,7 @@
 #include "cc/layers/layer_collections.h"
 #include "cc/layers/layer_list_iterator.h"
 #include "cc/output/output_surface.h"
+#include "cc/output/renderer_capabilities.h"
 #include "cc/output/swap_promise.h"
 #include "cc/resources/resource_format.h"
 #include "cc/resources/scoped_ui_resource.h"
@@ -176,6 +177,8 @@
     return rendering_stats_instrumentation_.get();
   }
 
+  virtual const RendererCapabilities& GetRendererCapabilities() const;
+
   void SetNeedsAnimate();
   virtual void SetNeedsUpdateLayers();
   virtual void SetNeedsCommit();