Mojoify the RequestThumbnailForContextNode IPC message and reply

chrome/browser/ui/tab_contents/core_tab_helper.h

Index: chrome/browser/ui/tab_contents/core_tab_helper.h
diff --git a/chrome/browser/ui/tab_contents/core_tab_helper.h b/chrome/browser/ui/tab_contents/core_tab_helper.h
index 43041d47c78c415202dfd321b39cfe39b4e8192f..d2231c021aceda5235b772a0173adc80567710c6 100644
--- a/chrome/browser/ui/tab_contents/core_tab_helper.h
+++ b/chrome/browser/ui/tab_contents/core_tab_helper.h
@@ -11,6 +11,7 @@
 #include "base/id_map.h"
 #include "base/macros.h"
 #include "base/time/time.h"
+#include "chrome/common/thumbnail_capturer.mojom.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/browser/web_contents_user_data.h"
 #include "ui/gfx/geometry/size.h"
@@ -23,7 +24,7 @@ class CoreTabHelper : public content::WebContentsObserver,
                       public content::WebContentsUserData<CoreTabHelper> {
  public:
   using ContextNodeThumbnailCallback =
-      base::Callback<void(const std::string&, const gfx::Size&)>;
+      chrome::mojom::ThumbnailCapturer::RequestThumbnailForContextNodeCallback;
 
   ~CoreTabHelper() override;
 
@@ -58,8 +59,8 @@ class CoreTabHelper : public content::WebContentsObserver,
                              const GURL& src_url);
   void RequestThumbnailForContextNode(
       content::RenderFrameHost* render_frame_host,
-      int minimum_size,
-      gfx::Size maximum_size,
+      int thumbnail_min_area_pixels,
+      gfx::Size thumbnail_max_size_pixels,
       const ContextNodeThumbnailCallback& callback);
 
   CoreTabHelperDelegate* delegate() const { return delegate_; }
@@ -85,12 +86,13 @@ class CoreTabHelper : public content::WebContentsObserver,
   void WebContentsDestroyed() override;
   void BeforeUnloadFired(const base::TimeTicks& proceed_time) override;
   void BeforeUnloadDialogCancelled() override;
-  bool OnMessageReceived(const IPC::Message& message,
-                         content::RenderFrameHost* render_frame_host) override;
 
-  void OnRequestThumbnailForContextNodeACK(const std::string& thumbnail_data,
-                                           const gfx::Size& original_size,
-                                           int callback_id);
+  void OnThumbnailForContextNodeReceived(
+      int interface_id,
+      const ContextNodeThumbnailCallback& callback,
+      const std::string& thumbnail_data,
+      const gfx::Size& original_size);
+
   void DoSearchByImageInNewTab(const GURL& src_url,
                                const std::string& thumbnail_data,
                                const gfx::Size& original_size);
@@ -115,7 +117,8 @@ class CoreTabHelper : public content::WebContentsObserver,
   // (full-page plugins for now only) permissions.
   int content_restrictions_;
 
-  IDMap<std::unique_ptr<ContextNodeThumbnailCallback>> thumbnail_callbacks_;
+  IDMap<std::unique_ptr<chrome::mojom::ThumbnailCapturerPtr>>
+      thumbnail_capturers_;
 
   DISALLOW_COPY_AND_ASSIGN(CoreTabHelper);
 };