Add "UninstallReason" parameter to ExtensionRegistryObserver::OnExtensionUninstalled.

chrome/browser/sync/test/integration/extensions_helper.cc

Index: chrome/browser/sync/test/integration/extensions_helper.cc
diff --git a/chrome/browser/sync/test/integration/extensions_helper.cc b/chrome/browser/sync/test/integration/extensions_helper.cc
index 7ebf751f8e86d5161bb7925ddca897e88ace7b9c..34361de78fa40c0a3b42da283f602d9d004d53e6 100644
--- a/chrome/browser/sync/test/integration/extensions_helper.cc
+++ b/chrome/browser/sync/test/integration/extensions_helper.cc
@@ -161,7 +161,8 @@ class ExtensionsMatchChecker : public StatusChangeChecker,
       bool is_update) OVERRIDE;
   virtual void OnExtensionUninstalled(
       content::BrowserContext* browser_context,
-      const extensions::Extension* extension) OVERRIDE;
+      const extensions::Extension* extension,
+      extensions::UninstallReason reason) OVERRIDE;
 
   void Wait();
 
@@ -230,7 +231,8 @@ void ExtensionsMatchChecker::OnExtensionInstalled(
 
 void ExtensionsMatchChecker::OnExtensionUninstalled(
     content::BrowserContext* browser_context,
-    const extensions::Extension* extension) {
+    const extensions::Extension* extension,
+    extensions::UninstallReason reason) {
   CheckExitCondition();
 }