Add RetainedRef uses where needed.

content/renderer/browser_render_view_browsertest.cc

Index: content/renderer/browser_render_view_browsertest.cc
diff --git a/content/renderer/browser_render_view_browsertest.cc b/content/renderer/browser_render_view_browsertest.cc
index 380f95f33b4eca014cd881541b5e0c9cab2c419e..9020a8b2e8154b6f42fa13aef0e9d580e81effe4 100644
--- a/content/renderer/browser_render_view_browsertest.cc
+++ b/content/renderer/browser_render_view_browsertest.cc
@@ -210,7 +210,8 @@ IN_PROC_BROWSER_TEST_F(RenderViewBrowserTest, ConfirmCacheInformationPlumbed) {
           GetRequestContextForRenderProcess(renderer_id);
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
-      base::Bind(&InterceptNetworkTransactions, url_request_context_getter,
+      base::Bind(&InterceptNetworkTransactions,
+                 base::RetainedRef(url_request_context_getter),
                  net::ERR_FAILED));
 
   // An error results in one completed navigation.
@@ -226,7 +227,7 @@ IN_PROC_BROWSER_TEST_F(RenderViewBrowserTest, ConfirmCacheInformationPlumbed) {
   scoped_refptr<MessageLoopRunner> runner = new MessageLoopRunner;
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
-      base::Bind(&ClearCache, url_request_context_getter,
+      base::Bind(&ClearCache, base::RetainedRef(url_request_context_getter),
                  runner->QuitClosure()));
   runner->Run();