Get rid of content::NavigationController in cc file and use "using" instead.

chrome/browser/safe_browsing/safe_browsing_blocking_page_test.cc

Index: chrome/browser/safe_browsing/safe_browsing_blocking_page_test.cc
===================================================================
--- chrome/browser/safe_browsing/safe_browsing_blocking_page_test.cc	(revision 116288)
+++ chrome/browser/safe_browsing/safe_browsing_blocking_page_test.cc	(working copy)
@@ -27,6 +27,7 @@
 #include "content/test/test_browser_thread.h"
 
 using content::BrowserThread;
+using content::NavigationController;
 using content::WebContents;
 
 // A SafeBrowingService class that allows us to inject the malicious URLs.
@@ -430,7 +431,7 @@
   ui_test_utils::NavigateToURL(browser(), url);
   ui_test_utils::WindowedNotificationObserver observer(
       content::NOTIFICATION_LOAD_STOP,
-      content::Source<content::NavigationController>(
+      content::Source<NavigationController>(
           &browser()->GetSelectedTabContentsWrapper()->web_contents()->
               GetController()));
   SendCommand("\"proceed\"");    // Simulate the user clicking "proceed"
@@ -462,7 +463,7 @@
 
   ui_test_utils::WindowedNotificationObserver observer(
       content::NOTIFICATION_LOAD_STOP,
-      content::Source<content::NavigationController>(
+      content::Source<NavigationController>(
           &browser()->GetSelectedTabContentsWrapper()->web_contents()->
               GetController()));
   SendCommand("\"proceed\"");   // Simulate the user clicking "proceed".
@@ -481,7 +482,7 @@
 
   ui_test_utils::WindowedNotificationObserver observer(
       content::NOTIFICATION_LOAD_STOP,
-      content::Source<content::NavigationController>(
+      content::Source<NavigationController>(
           &browser()->GetSelectedTabContentsWrapper()->web_contents()->
               GetController()));
   SendCommand("\"reportError\"");   // Simulate the user clicking "report error"
@@ -504,7 +505,7 @@
 
   ui_test_utils::WindowedNotificationObserver observer(
       content::NOTIFICATION_LOAD_STOP,
-      content::Source<content::NavigationController>(
+      content::Source<NavigationController>(
           &browser()->GetSelectedTabContentsWrapper()->web_contents()->
               GetController()));
   SendCommand("\"learnMore\"");   // Simulate the user clicking "learn more"
@@ -527,7 +528,7 @@
 
   ui_test_utils::WindowedNotificationObserver observer(
       content::NOTIFICATION_NAV_ENTRY_COMMITTED,
-      content::Source<content::NavigationController>(
+      content::Source<NavigationController>(
           &browser()->GetSelectedTabContentsWrapper()->web_contents()->
               GetController()));
   SendCommand("\"takeMeBack\"");    // Simulate the user clicking "back"