Move guest_view to extensions.

extensions/browser/guest_view/guest_view_manager.h

Index: extensions/browser/guest_view/guest_view_manager.h
diff --git a/chrome/browser/guest_view/guest_view_manager.h b/extensions/browser/guest_view/guest_view_manager.h
similarity index 94%
rename from chrome/browser/guest_view/guest_view_manager.h
rename to extensions/browser/guest_view/guest_view_manager.h
index 8b32ed9c41be297e66bc2ca605f62c4bcbede80d..44f4249a9babddf371474e1cbdf76236ad21d7bf 100644
--- a/chrome/browser/guest_view/guest_view_manager.h
+++ b/extensions/browser/guest_view/guest_view_manager.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_H_
-#define CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_H_
+#ifndef EXTENSIONS_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_H_
+#define EXTENSIONS_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_H_
 
 #include <map>
 
@@ -14,8 +14,6 @@
 #include "content/public/browser/site_instance.h"
 #include "content/public/browser/web_contents.h"
 
-class GuestViewBase;
-class GuestViewManagerFactory;
 class GURL;
 
 namespace content {
@@ -23,6 +21,10 @@ class BrowserContext;
 class WebContents;
 }  // namespace content
 
+namespace extensions{
+class GuestViewBase;
+class GuestViewManagerFactory;
+
 class GuestViewManager : public content::BrowserPluginGuestManager,
                          public base::SupportsUserData::Data {
  public:
@@ -120,4 +122,6 @@ class GuestViewManager : public content::BrowserPluginGuestManager,
   DISALLOW_COPY_AND_ASSIGN(GuestViewManager);
 };
 
-#endif  // CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_H_
+}  // namespace extensions
+
+#endif  // EXTENSIONS_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_H_