Change WebContentsDelegate::RunFileChooser to be frame based.

content/browser/web_contents/web_contents_impl.cc

 // Copyright (c) 2012 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 "content/browser/web_contents/web_contents_impl.h"
 
 #include <stddef.h>
 
 #include <cmath>
 #include <utility>
@@ skipping 715 matching lines @@
     return false;
   }
 
   return true;
 }
 
 void WebContentsImpl::RunFileChooser(
     RenderViewHost* render_view_host,
     const FileChooserParams& params) {
   if (delegate_)
-    delegate_->RunFileChooser(this, params);
+    delegate_->RunFileChooser(GetMainFrame(), params);
 }
 
 NavigationControllerImpl& WebContentsImpl::GetController() {
   return controller_;
 }
 
 const NavigationControllerImpl& WebContentsImpl::GetController() const {
   return controller_;
 }
 
@@ skipping 4358 matching lines @@
   for (RenderViewHost* render_view_host : render_view_host_set)
     render_view_host->OnWebkitPreferencesChanged();
 }
 
 void WebContentsImpl::SetJavaScriptDialogManagerForTesting(
     JavaScriptDialogManager* dialog_manager) {
   dialog_manager_ = dialog_manager;
 }
 
 }  // namespace content