Convert PrerenderTabHelper to use the new navigation callbacks.

chrome/browser/prerender/prerender_tab_helper.h

Index: chrome/browser/prerender/prerender_tab_helper.h
diff --git a/chrome/browser/prerender/prerender_tab_helper.h b/chrome/browser/prerender/prerender_tab_helper.h
index 5f96be28c3d8779e77883d3bb77545f9e770ed57..f944aa10b13abcaa113d173514ab49ed52dafaf6 100644
--- a/chrome/browser/prerender/prerender_tab_helper.h
+++ b/chrome/browser/prerender/prerender_tab_helper.h
@@ -32,14 +32,10 @@ class PrerenderTabHelper
   void DidGetRedirectForResourceRequest(
       const content::ResourceRedirectDetails& details) override;
   void DidStopLoading() override;
-  void DidStartProvisionalLoadForFrame(
-      content::RenderFrameHost* render_frame_host,
-      const GURL& validated_url,
-      bool is_error_page) override;
-  void DidCommitProvisionalLoadForFrame(
-      content::RenderFrameHost* render_frame_host,
-      const GURL& validated_url,
-      ui::PageTransition transition_type) override;
+  void DidStartNavigation(
+      content::NavigationHandle* navigation_handle) override;
+  void DidFinishNavigation(
+      content::NavigationHandle* navigation_handle) override;
 
   // Called when the URL of the main frame changed, either when the load
   // commits, or a redirect happens.