More html_viewer OOPIF changes

mandoline/tab/frame_tree.h

Index: mandoline/tab/frame_tree.h
diff --git a/mandoline/tab/frame_tree.h b/mandoline/tab/frame_tree.h
index 479969343db6949d0d151603e0a19eb4d2ed77f7..b93fc051eedbdb61bb0aba3707984621e5a474b6 100644
--- a/mandoline/tab/frame_tree.h
+++ b/mandoline/tab/frame_tree.h
@@ -14,7 +14,7 @@ class FrameTreeDelegate;
 class FrameUserData;
 
 // FrameTree manages the set of Frames that comprise a single url. FrameTree
-// owns the root Frame and each Frames owns its children. Frames are
+// owns the root Frame and each Frame owns its children. Frames are
 // automatically deleted and removed from the tree if the corresponding view is
 // deleted. This happens if the creator of the view deletes it (say an iframe is
 // destroyed).
@@ -49,6 +49,7 @@ class FrameTree {
 
   void LoadingStateChanged();
   void ProgressChanged();
+  void FrameNameChanged(Frame* frame);
 
   mojo::View* view_;