mandoline: Add find in page.

components/web_view/web_view_impl.h

Index: components/web_view/web_view_impl.h
diff --git a/components/web_view/web_view_impl.h b/components/web_view/web_view_impl.h
index c7a49d4a2bea75e664dfc693cc850fcc328e3357..a84b29c0ce07f55546cff0fd1cd33c34cb95372a 100644
--- a/components/web_view/web_view_impl.h
+++ b/components/web_view/web_view_impl.h
@@ -57,6 +57,8 @@ class WebViewImpl : public mojom::WebView,
   void GetViewTreeClient(
       mojo::InterfaceRequest<mojo::ViewTreeClient> view_tree_client)
           override;
+  void Find(int32_t request_id, const mojo::String& search_text) override;
+  void StopFinding() override;
   void GoBack() override;
   void GoForward() override;
 
@@ -84,6 +86,11 @@ class WebViewImpl : public mojom::WebView,
                         const CanNavigateFrameCallback& callback) override;
   void DidStartNavigation(Frame* frame) override;
   void DidCommitProvisionalLoad(Frame* frame) override;
+  void ReportFindInPageMatchCount(int32_t request_id,
+                                  int32_t count,
+                                  bool final_update) override;
+  void ReportFindInPageSelection(int32_t request_id,
+                                 int32_t active_match_ordinal) override;
 
   // Overridden from FrameDevToolsAgent::Delegate:
   void HandlePageNavigateRequest(const GURL& url) override;