Move Extension into extensions namespace

chrome/browser/automation/automation_util.h

Index: chrome/browser/automation/automation_util.h
diff --git a/chrome/browser/automation/automation_util.h b/chrome/browser/automation/automation_util.h
index c33fd72607285d3d6c553af871776e2062a15f5f..942a08b4959cd00e0f7f69fa3751710e3e42d198 100644
--- a/chrome/browser/automation/automation_util.h
+++ b/chrome/browser/automation/automation_util.h
@@ -13,7 +13,6 @@
 class AutomationId;
 class AutomationProvider;
 class Browser;
-class Extension;
 class GURL;
 class Profile;
 class TabContentsWrapper;
@@ -27,6 +26,10 @@ namespace base {
 class DictionaryValue;
 }
 
+namespace extensions {
+class Extension;
+}
+
 namespace IPC {
 class Message;
 }
@@ -96,7 +99,7 @@ AutomationId GetIdForExtensionView(
     const content::RenderViewHost* render_view_host);
 
 // Returns a valid automation ID for the extension.
-AutomationId GetIdForExtension(const Extension* extension);
+AutomationId GetIdForExtension(const extensions::Extension* extension);
 
 // Gets the tab for the given ID. Returns true on success.
 bool GetTabForId(const AutomationId& id, content::WebContents** tab);
@@ -109,7 +112,7 @@ bool GetRenderViewForId(const AutomationId& id,
 // Gets the extension for the given ID. Returns true on success.
 bool GetExtensionForId(const AutomationId& id,
                        Profile* profile,
-                       const Extension** extension);
+                       const extensions::Extension** extension);
 
 // Returns whether the given ID refers to an actual automation entity.
 bool DoesObjectWithIdExist(const AutomationId& id, Profile* profile);