Update from https://crrev.com/316786

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 f41e02391e67b6f4b6266e47769d71e522bf0c68..b17b5a4c4a77e2f3f943920bd30e68c95a880bbe 100644
--- a/cc/trees/layer_tree_host.h
+++ b/cc/trees/layer_tree_host.h
@@ -212,7 +212,7 @@ class CC_EXPORT LayerTreeHost {
   void SetViewportSize(const gfx::Size& device_viewport_size);
   void SetTopControlsShrinkBlinkSize(bool shrink);
   void SetTopControlsHeight(float height);
-  void SetTopControlsContentOffset(float offset);
+  void SetTopControlsShownRatio(float ratio);
 
   gfx::Size device_viewport_size() const { return device_viewport_size_; }
 
@@ -273,7 +273,7 @@ class CC_EXPORT LayerTreeHost {
   }
 
   // Obtains a thorough dump of the LayerTreeHost as a value.
-  void AsValueInto(base::debug::TracedValue* value) const;
+  void AsValueInto(base::trace_event::TracedValue* value) const;
 
   bool in_paint_layer_contents() const { return in_paint_layer_contents_; }
 
@@ -416,7 +416,7 @@ class CC_EXPORT LayerTreeHost {
   gfx::Size device_viewport_size_;
   bool top_controls_shrink_blink_size_;
   float top_controls_height_;
-  float top_controls_content_offset_;
+  float top_controls_shown_ratio_;
   float device_scale_factor_;
 
   bool visible_;