Move Extension into extensions namespace

chrome/browser/sync/test/integration/sync_extension_helper.h

Index: chrome/browser/sync/test/integration/sync_extension_helper.h
diff --git a/chrome/browser/sync/test/integration/sync_extension_helper.h b/chrome/browser/sync/test/integration/sync_extension_helper.h
index 1e85afe754fde6abc5d714103a589a4014b1b52a..2b1dc7135667497b0e5b872d2ac2e49e30d0ab9b 100644
--- a/chrome/browser/sync/test/integration/sync_extension_helper.h
+++ b/chrome/browser/sync/test/integration/sync_extension_helper.h
@@ -19,6 +19,10 @@
 class Profile;
 class SyncTest;
 
+namespace extensions {
+class Extension;
+}
+
 class SyncExtensionHelper {
  public:
   // Singleton implementation.
@@ -33,8 +37,9 @@ class SyncExtensionHelper {
 
   // Installs the extension with the given name to |profile|, and returns the
   // extension ID of the new extension.
-  std::string InstallExtension(
-      Profile* profile, const std::string& name, Extension::Type type);
+  std::string InstallExtension(Profile* profile,
+                               const std::string& name,
+                               extensions::Extension::Type type);
 
   // Uninstalls the extension with the given name from |profile|.
   void UninstallExtension(Profile* profile, const std::string& name);
@@ -68,7 +73,8 @@ class SyncExtensionHelper {
 
   // Installs all extensions pending sync in |profile| of the given
   // type.
-  void InstallExtensionsPendingForSync(Profile* profile, Extension::Type type);
+  void InstallExtensionsPendingForSync(Profile* profile,
+                                       extensions::Extension::Type type);
 
   // Returns true iff |profile1| and |profile2| have the same extensions and
   // they are all in the same state.
@@ -87,7 +93,8 @@ class SyncExtensionHelper {
   };
 
   typedef std::map<std::string, ExtensionState> ExtensionStateMap;
-  typedef std::map<std::string, scoped_refptr<Extension> > ExtensionNameMap;
+  typedef std::map<std::string, scoped_refptr<extensions::Extension> >
+      ExtensionNameMap;
   typedef std::map<Profile*, ExtensionNameMap> ProfileExtensionNameMap;
   typedef std::map<std::string, std::string> StringMap;
 
@@ -106,9 +113,9 @@ class SyncExtensionHelper {
   // Returns an extension for the given name in |profile|.  type and
   // index.  Two extensions with the name but different profiles will
   // have the same id.
-  scoped_refptr<Extension> GetExtension(
+  scoped_refptr<extensions::Extension> GetExtension(
       Profile* profile, const std::string& name,
-      Extension::Type type) WARN_UNUSED_RESULT;
+      extensions::Extension::Type type) WARN_UNUSED_RESULT;
 
   ProfileExtensionNameMap profile_extensions_;
   StringMap id_to_name_;