cc: switch to new WebLayerTreeViewClient API for requesting font atlas

cc/test/fake_layer_tree_host_client.h

Index: cc/test/fake_layer_tree_host_client.h
diff --git a/cc/test/fake_layer_tree_host_client.h b/cc/test/fake_layer_tree_host_client.h
index 5ca8168fad490d8242b22bf0b30b925e6c085d56..321e926599f46d8977ddedec12267fc577159097 100644
--- a/cc/test/fake_layer_tree_host_client.h
+++ b/cc/test/fake_layer_tree_host_client.h
@@ -5,6 +5,7 @@
 #define CC_TEST_FAKE_LAYER_TREE_HOST_CLIENT_H_
 
 #include "base/memory/scoped_ptr.h"
+#include "cc/font_atlas.h"
 #include "cc/input_handler.h"
 #include "cc/layer_tree_host.h"
 #include "cc/test/compositor_fake_web_graphics_context_3d.h"
@@ -30,6 +31,8 @@ public:
 
     // Used only in the single-threaded path.
     virtual void scheduleComposite() OVERRIDE { }
+
+    virtual scoped_ptr<FontAtlas> createFontAtlas() OVERRIDE;
 };
 
 }