Move ClosePage() from RenderViewHost to WebContents.

extensions/browser/process_manager.cc

Index: extensions/browser/process_manager.cc
diff --git a/extensions/browser/process_manager.cc b/extensions/browser/process_manager.cc
index 47f7b191e004da8dccf2a6179c9a17a73471752f..1ecbd6e86d427470ddecd5657ff7b516cee611aa 100644
--- a/extensions/browser/process_manager.cc
+++ b/extensions/browser/process_manager.cc
@@ -805,7 +805,7 @@ void ProcessManager::CloseLazyBackgroundPageNow(const std::string& extension_id,
       }
     }
     for (content::RenderFrameHost* frame : frames_to_close) {
-      frame->GetRenderViewHost()->ClosePage();
+      content::WebContents::FromRenderFrameHost(frame)->ClosePage();
       // RenderViewHost::ClosePage() may result in calling

[Charlie Reis, 2015/04/21 17:28:09]

nit: Update comment.

[nasko, 2015/04/29 17:09:27]

Done.

       // UnregisterRenderViewHost() asynchronously and may cause race conditions
       // when the background page is reloaded.