Add an extension override bubble and warning box for proxy extensions.

chrome/browser/extensions/suspicious_extension_bubble_controller.cc

Index: chrome/browser/extensions/suspicious_extension_bubble_controller.cc
diff --git a/chrome/browser/extensions/suspicious_extension_bubble_controller.cc b/chrome/browser/extensions/suspicious_extension_bubble_controller.cc
index 64803a0ff17708bed96815377b7d43d3412a09ed..c0a48d16ee0d1a1b02f53511f385dd9b883318e9 100644
--- a/chrome/browser/extensions/suspicious_extension_bubble_controller.cc
+++ b/chrome/browser/extensions/suspicious_extension_bubble_controller.cc
@@ -42,7 +42,8 @@ class SuspiciousExtensionBubbleDelegate
       ExtensionMessageBubbleController::BubbleAction user_action) OVERRIDE;
   virtual void PerformAction(const extensions::ExtensionIdList& list) OVERRIDE;
   virtual base::string16 GetTitle() const OVERRIDE;
-  virtual base::string16 GetMessageBody() const OVERRIDE;
+  virtual base::string16 GetMessageBody(
+      bool anchored_to_browser_action) const OVERRIDE;
   virtual base::string16 GetOverflowText(
       const base::string16& overflow_count) const OVERRIDE;
   virtual base::string16 GetLearnMoreLabel() const OVERRIDE;
@@ -98,7 +99,8 @@ base::string16 SuspiciousExtensionBubbleDelegate::GetTitle() const {
   return l10n_util::GetStringUTF16(IDS_EXTENSIONS_UNSUPPORTED_DISABLED_TITLE);
 }
 
-base::string16 SuspiciousExtensionBubbleDelegate::GetMessageBody() const {
+base::string16 SuspiciousExtensionBubbleDelegate::GetMessageBody(
+    bool anchored_to_browser_action) const {
   return l10n_util::GetStringFUTF16(IDS_EXTENSIONS_UNSUPPORTED_DISABLED_BODY,
       l10n_util::GetStringUTF16(IDS_EXTENSION_WEB_STORE_TITLE));
 }