Move BrowserThread to content namespace.

chrome/browser/ui/webui/media/media_internals_proxy.h

Index: chrome/browser/ui/webui/media/media_internals_proxy.h
diff --git a/chrome/browser/ui/webui/media/media_internals_proxy.h b/chrome/browser/ui/webui/media/media_internals_proxy.h
index 6350a3bba24833b3c3eee03a3b9d17e84cd54fd0..89f228d0307d8250ea237a355700289d37bd17b1 100644
--- a/chrome/browser/ui/webui/media/media_internals_proxy.h
+++ b/chrome/browser/ui/webui/media/media_internals_proxy.h
@@ -28,8 +28,9 @@ class Value;
 // threads before destruction.
 class MediaInternalsProxy
     : public MediaInternalsObserver,
-      public base::RefCountedThreadSafe<MediaInternalsProxy,
-                                        BrowserThread::DeleteOnUIThread>,
+      public base::RefCountedThreadSafe<
+          MediaInternalsProxy,
+          content::BrowserThread::DeleteOnUIThread>,
       public ChromeNetLog::ThreadSafeObserverImpl,
       public content::NotificationObserver {
  public:
@@ -60,7 +61,8 @@ class MediaInternalsProxy
                           net::NetLog::EventParameters* params) OVERRIDE;
 
  private:
-  friend struct BrowserThread::DeleteOnThread<BrowserThread::UI>;
+  friend struct content::BrowserThread::DeleteOnThread<
+      content::BrowserThread::UI>;
   friend class DeleteTask<MediaInternalsProxy>;
   virtual ~MediaInternalsProxy();