Move Extension into extensions namespace

chrome/browser/extensions/pending_extension_info.h

Index: chrome/browser/extensions/pending_extension_info.h
diff --git a/chrome/browser/extensions/pending_extension_info.h b/chrome/browser/extensions/pending_extension_info.h
index fc7fd04f6e776e65bc873d3ce67c8698c524ef1a..7af707446ff89151c14e362c03f9b8d968032b81 100644
--- a/chrome/browser/extensions/pending_extension_info.h
+++ b/chrome/browser/extensions/pending_extension_info.h
@@ -18,7 +18,7 @@
 // PendingExtensionManager, and remove all other users.
 class PendingExtensionInfo {
  public:
-  typedef bool (*ShouldAllowInstallPredicate)(const Extension&);
+  typedef bool (*ShouldAllowInstallPredicate)(const extensions::Extension&);
 
   PendingExtensionInfo(
       const GURL& update_url,
@@ -26,7 +26,7 @@ class PendingExtensionInfo {
       ShouldAllowInstallPredicate should_allow_install,
       bool is_from_sync,
       bool install_silently,
-      Extension::Location install_source);
+      extensions::Extension::Location install_source);
 
   // Required for STL container membership.  Should not be used directly.
   PendingExtensionInfo();
@@ -40,12 +40,14 @@ class PendingExtensionInfo {
   // If not, the extension is discarded. This allows creators of
   // PendingExtensionInfo objects to ensure that extensions meet some criteria
   // that can only be tested once the extension is unpacked.
-  bool ShouldAllowInstall(const Extension& extension) const {
+  bool ShouldAllowInstall(const extensions::Extension& extension) const {
     return should_allow_install_(extension);
   }
   bool is_from_sync() const { return is_from_sync_; }
   bool install_silently() const { return install_silently_; }
-  Extension::Location install_source() const { return install_source_; }
+  extensions::Extension::Location install_source() const {
+        return install_source_;
+  }
 
  private:
   GURL update_url_;
@@ -58,7 +60,7 @@ class PendingExtensionInfo {
 
   bool is_from_sync_;  // This update check was initiated from sync.
   bool install_silently_;
-  Extension::Location install_source_;
+  extensions::Extension::Location install_source_;
 
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest, AddPendingExtensionFromSync);
 };