Move Version to base namespace.

chrome/browser/extensions/pending_extension_manager.h

Index: chrome/browser/extensions/pending_extension_manager.h
diff --git a/chrome/browser/extensions/pending_extension_manager.h b/chrome/browser/extensions/pending_extension_manager.h
index df36d652ca5f66448d5fe35231c8bfe84120ecf2..d275adf1a0d9457920827db4a7ef55377733f2c5 100644
--- a/chrome/browser/extensions/pending_extension_manager.h
+++ b/chrome/browser/extensions/pending_extension_manager.h
@@ -15,7 +15,10 @@
 class ExtensionServiceInterface;
 class GURL;
 class PendingExtensionManager;
+
+namespace base {
 class Version;
+}
 
 FORWARD_DECLARE_TEST(ExtensionServiceTest,
                      UpdatePendingExtensionAlreadyInstalled);
@@ -89,7 +92,7 @@ class PendingExtensionManager {
   bool AddFromExternalFile(
       const std::string& id,
       Manifest::Location location,
-      const Version& version);
+      const base::Version& version);
 
   // Get the list of pending IDs that should be installed from an update URL.
   // Pending extensions that will be installed from local files will not be
@@ -105,7 +108,7 @@ class PendingExtensionManager {
   bool AddExtensionImpl(
       const std::string& id,
       const GURL& update_url,
-      const Version& version,
+      const base::Version& version,
       PendingExtensionInfo::ShouldAllowInstallPredicate should_allow_install,
       bool is_from_sync,
       bool install_silently,