mandoline: Add find in page.

components/web_view/frame_tree_delegate.h

Index: components/web_view/frame_tree_delegate.h
diff --git a/components/web_view/frame_tree_delegate.h b/components/web_view/frame_tree_delegate.h
index d14fe72a4e9359a1e6b9da3ed471c375ac4b40e6..b1eab678daecbd30e34cfbdfbf4a8b25304558c9 100644
--- a/components/web_view/frame_tree_delegate.h
+++ b/components/web_view/frame_tree_delegate.h
@@ -84,6 +84,15 @@ class FrameTreeDelegate {
   // action.
   virtual void OnViewEmbeddedInFrameDisconnected(Frame* frame);
 
+  // Reports the current find state back to our owner.
+  virtual void OnFindInFrameCountUpdated(int32_t request_id,
+                                         Frame* frame,
+                                         int32_t count,
+                                         bool final_update);
+  virtual void OnFindInPageSelectionUpdated(int32_t request_id,
+                                            Frame* frame,
+                                            int32_t active_match_ordinal);
+
  protected:
   virtual ~FrameTreeDelegate() {}
 };