Pass resourceless software mode in BeginFrameArgs

cc/trees/layer_tree_host_impl.h

Index: cc/trees/layer_tree_host_impl.h
diff --git a/cc/trees/layer_tree_host_impl.h b/cc/trees/layer_tree_host_impl.h
index 96e580fc16a4cffdb186cefdf091cec3047fabe7..9ae639a6756c15d1e9145403c10a09353594ed63 100644
--- a/cc/trees/layer_tree_host_impl.h
+++ b/cc/trees/layer_tree_host_impl.h
@@ -213,6 +213,10 @@ class CC_EXPORT LayerTreeHostImpl
   // Resets all of the trees to an empty state.
   void ResetTreesForTesting();
 
+  bool resourceless_software_draw() const {
+    return resourceless_software_draw_;
+  }
+
   bool device_viewport_valid_for_tile_management() const {
     return device_viewport_valid_for_tile_management_;
   }
@@ -252,6 +256,7 @@ class CC_EXPORT LayerTreeHostImpl
       const gfx::Transform& transform,
       const gfx::Rect& viewport,
       const gfx::Rect& clip,
+      bool resourceless_software_draw,
       bool valid_for_tile_management) OVERRIDE;
   virtual void DidLoseOutputSurface() OVERRIDE;
   virtual void DidSwapBuffers() OVERRIDE;
@@ -659,6 +664,7 @@ class CC_EXPORT LayerTreeHostImpl
   gfx::Transform external_transform_;
   gfx::Rect external_viewport_;
   gfx::Rect external_clip_;
+  bool resourceless_software_draw_;
   bool device_viewport_valid_for_tile_management_;
 
   gfx::Rect viewport_damage_rect_;