Prune shared extendion module after extension updating.

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 b21eb79da5c2d4cd3f68fe8c9c16face92dc2375..7ebf751f8e86d5161bb7925ddca897e88ace7b9c 100644
--- a/chrome/browser/sync/test/integration/extensions_helper.cc
+++ b/chrome/browser/sync/test/integration/extensions_helper.cc
@@ -157,7 +157,8 @@ class ExtensionsMatchChecker : public StatusChangeChecker,
       extensions::UnloadedExtensionInfo::Reason reason) OVERRIDE;
   virtual void OnExtensionInstalled(
       content::BrowserContext* browser_context,
-      const extensions::Extension* extension) OVERRIDE;
+      const extensions::Extension* extension,
+      bool is_update) OVERRIDE;
   virtual void OnExtensionUninstalled(
       content::BrowserContext* browser_context,
       const extensions::Extension* extension) OVERRIDE;
@@ -222,7 +223,8 @@ void ExtensionsMatchChecker::OnExtensionUnloaded(
 
 void ExtensionsMatchChecker::OnExtensionInstalled(
     content::BrowserContext* browser_context,
-    const extensions::Extension* extension) {
+    const extensions::Extension* extension,
+    bool is_update) {
   CheckExitCondition();
 }