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..d1a096ba84a39a3f43df36603f1b8cbd4258458e 100644
--- a/components/web_view/web_view_impl.h
+++ b/components/web_view/web_view_impl.h
@@ -5,6 +5,7 @@
 #ifndef COMPONENTS_WEB_VIEW_WEB_VIEW_IMPL_H_
 #define COMPONENTS_WEB_VIEW_WEB_VIEW_IMPL_H_
 
+#include <deque>
 #include <string>
 
 #include "base/macros.h"
@@ -49,14 +50,27 @@ class WebViewImpl : public mojom::WebView,
  private:
   friend class PendingWebViewLoad;
 
+  struct MatchData {
+    int count;
+    bool final_update;
+  };
+
   // See description above |pending_load_| for details.
   void OnLoad(const GURL& pending_url);
 
+  std::deque<Frame*> GetAllFrames();
+
+  // Callback method invoked by Find().
+  void OnContinueFinding(int32_t request_id, const mojo::String& search_text,
+                         bool found);
+
   // Overridden from WebView:
   void LoadRequest(mojo::URLRequestPtr request) override;
   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 +98,14 @@ class WebViewImpl : public mojom::WebView,
                         const CanNavigateFrameCallback& callback) override;
   void DidStartNavigation(Frame* frame) override;
   void DidCommitProvisionalLoad(Frame* frame) override;
+  void DidDestroyFrame(Frame* frame) override;
+  void OnReportFindInFrameMatchCount(int32_t request_id,
+                                     Frame* frame,
+                                     int32_t count,
+                                     bool final_update) override;
+  void OnReportFindInPageSelection(int32_t request_id,
+                                   Frame* frame,
+                                   int32_t active_match_ordinal) override;
 
   // Overridden from FrameDevToolsAgent::Delegate:
   void HandlePageNavigateRequest(const GURL& url) override;
@@ -108,6 +130,16 @@ class WebViewImpl : public mojom::WebView,
 
   NavigationController navigation_controller_;
 
+  // A list of Frames which we have not sent a Find() command to. Initialized
+  // in Find(), and read from OnContinueFinding().
+  std::deque<Frame*> pending_find_frames_;

[sky, 2015/10/02 16:03:40]

Can the find related code be moved into it's own class that WebView owns?

+
+  // Current find
+  int current_find_request_;
+
+  // The current callback data from various frames.
+  std::map<Frame*, MatchData> returned_find_data_;
+
   DISALLOW_COPY_AND_ASSIGN(WebViewImpl);
 };