Convert ExtensionActionRunner to use the new navigation callbacks.

chrome/browser/extensions/extension_action_runner.h

Index: chrome/browser/extensions/extension_action_runner.h
diff --git a/chrome/browser/extensions/extension_action_runner.h b/chrome/browser/extensions/extension_action_runner.h
index 16e90970d7232b6051672ad12af429f5c1977f6b..7e84e1efdf16a7228111521eab5c6b8fdeac555b 100644
--- a/chrome/browser/extensions/extension_action_runner.h
+++ b/chrome/browser/extensions/extension_action_runner.h
@@ -164,9 +164,8 @@ class ExtensionActionRunner : public content::WebContentsObserver,
   // content::WebContentsObserver implementation.
   bool OnMessageReceived(const IPC::Message& message,
                          content::RenderFrameHost* render_frame_host) override;
-  void DidNavigateMainFrame(
-      const content::LoadCommittedDetails& details,
-      const content::FrameNavigateParams& params) override;
+  void DidFinishNavigation(
+      content::NavigationHandle* navigation_handle) override;
 
   // ExtensionRegistryObserver:
   void OnExtensionUnloaded(content::BrowserContext* browser_context,