Remove a bunch of provisionalDataSource() usage.

chrome/renderer/chrome_render_frame_observer.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/chrome_render_frame_observer.h"
 
 #include <limits>
 #include <string>
 #include <vector>
 
@@ skipping 367 matching lines @@
     return;
 
   page_info_.CapturePageInfoLater(
       FINAL_CAPTURE, render_frame(),
       base::TimeDelta::FromMilliseconds(
           render_frame()->GetRenderView()->GetContentStateImmediately()
               ? 0
               : kDelayForCaptureMs));
 }
 
-void ChromeRenderFrameObserver::DidStartProvisionalLoad() {
+void ChromeRenderFrameObserver::DidStartProvisionalLoad(
+    blink::WebDataSource* datasource) {
   // Let translate_helper do any preparatory work for loading a URL.
   if (!translate_helper_)
     return;
 
   translate_helper_->PrepareForUrl(
       render_frame()->GetWebFrame()->document().url());
 }
 
 void ChromeRenderFrameObserver::DidCommitProvisionalLoad(
     bool is_new_navigation,
@@ skipping 25 matching lines @@
 
   TRACE_EVENT0("renderer", "ChromeRenderViewObserver::CapturePageInfo");
 
 #if defined(FULL_SAFE_BROWSING)
   // Will swap out the string.
   if (phishing_classifier_)
     phishing_classifier_->PageCaptured(content,
                                        capture_type == PRELIMINARY_CAPTURE);
 #endif
 }