Move Render(View|Widget)Host and associated classes to content namespace.

[email protected]
BUG=98716

Review URL: https://chromiumcodereview.appspot.com/9600036

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@125388 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/content/public/browser/web_contents.h b/content/public/browser/web_contents.h
index 655ec2e..f73813b5 100644
--- a/content/public/browser/web_contents.h
+++ b/content/public/browser/web_contents.h
@@ -18,8 +18,6 @@
 #include "ui/gfx/native_widget_types.h"
 #include "webkit/glue/window_open_disposition.h"
 
-class RenderViewHost;
-
 namespace base {
 class PropertyBag;
 class TimeTicks;
@@ -40,6 +38,7 @@
 class InterstitialPage;
 class NavigationController;
 class RenderProcessHost;
+class RenderViewHost;
 class RenderWidgetHostView;
 class SessionStorageNamespace;
 class SiteInstance;