Revert of Enable find-in-page across GuestViews.

components/guest_view/browser/guest_view_base.h

Index: components/guest_view/browser/guest_view_base.h
diff --git a/components/guest_view/browser/guest_view_base.h b/components/guest_view/browser/guest_view_base.h
index 5354d87e5a5667bf9f012e44e7fdbaadead8cc92..c900a11b01fde7ce95ad4225444287b944ea5646 100644
--- a/components/guest_view/browser/guest_view_base.h
+++ b/components/guest_view/browser/guest_view_base.h
@@ -222,6 +222,12 @@ class GuestViewBase : public content::BrowserPluginGuestDelegate,
       const content::NativeWebKeyboardEvent& event) override;
   bool PreHandleGestureEvent(content::WebContents* source,
                              const blink::WebGestureEvent& event) override;
+  void FindReply(content::WebContents* source,
+                 int request_id,
+                 int number_of_matches,
+                 const gfx::Rect& selection_rect,
+                 int active_match_ordinal,
+                 bool final_update) override;
 
   // WebContentsObserver implementation.
   void DidFinishNavigation(
@@ -290,6 +296,11 @@ class GuestViewBase : public content::BrowserPluginGuestDelegate,
   // asynchronous setup.
   virtual void SignalWhenReady(const base::Closure& callback);
 
+  // Returns true if this guest should handle find requests for its
+  // embedder. This should generally be true for guests that make up the
+  // entirety of the embedder's content.
+  virtual bool ShouldHandleFindRequestsForEmbedder() const;
+
   // This method is called immediately before suspended resource loads have been
   // resumed on attachment to an embedder.
   //
@@ -334,6 +345,10 @@ class GuestViewBase : public content::BrowserPluginGuestDelegate,
   void DidAttach(int guest_proxy_routing_id) final;
   void DidDetach() final;
   content::WebContents* GetOwnerWebContents() const final;
+  bool HandleFindForEmbedder(int request_id,
+                             const base::string16& search_text,
+                             const blink::WebFindOptions& options) final;
+  bool HandleStopFindingForEmbedder(content::StopFindAction action) final;
   void GuestSizeChanged(const gfx::Size& new_size) final;
   void SetGuestHost(content::GuestHost* guest_host) final;
   void WillAttach(content::WebContents* embedder_web_contents,