cc: switch to new WebLayerTreeViewClient API for requesting font atlas

cc/layer_tree_host.h

Index: cc/layer_tree_host.h
diff --git a/cc/layer_tree_host.h b/cc/layer_tree_host.h
index c140b31da21635175b86a2af5fa22821654a8db0..21366f4a0bdbc810d67c35f0c712a814ca0718f6 100644
--- a/cc/layer_tree_host.h
+++ b/cc/layer_tree_host.h
@@ -222,7 +222,6 @@ public:
     float deviceScaleFactor() const { return m_deviceScaleFactor; }
 
     void setShowFPSCounter(bool show);
-    void setFontAtlas(scoped_ptr<FontAtlas>);
 
     HeadsUpDisplayLayer* hudLayer() const { return m_hudLayer.get(); }
 
@@ -254,6 +253,7 @@ private:
     void setAnimationEventsRecursive(const AnimationEventsVector&, Layer*, base::Time wallClockTime);
 
     void createHUDLayerIfNeeded();
+    void createFontAtlasIfNeeded();
 
     bool m_animating;
     bool m_needsAnimateLayers;