Show a warning bubble when the IME extension is activated.

chrome/browser/ui/views/frame/browser_view.h

Index: chrome/browser/ui/views/frame/browser_view.h
diff --git a/chrome/browser/ui/views/frame/browser_view.h b/chrome/browser/ui/views/frame/browser_view.h
index 0a24f53bbf0b6a47a77505759b1aca4406b7ea74..5b6541a0f7aa2498ed2839ca0bd71a99491e167c 100644
--- a/chrome/browser/ui/views/frame/browser_view.h
+++ b/chrome/browser/ui/views/frame/browser_view.h
@@ -364,6 +364,10 @@ class BrowserView : public BrowserWindow,
   void ExecuteExtensionCommand(const extensions::Extension* extension,
                                const extensions::Command& command) override;
   ExclusiveAccessContext* GetExclusiveAccessContext() override;
+  void ShowImeWarningBubble(
+      const extensions::Extension* extension,
+      const base::Callback<void(ImeWarningBubblePermissionStatus status)>&
+          callback) override;
 
   BookmarkBarView* GetBookmarkBarView() const;
   LocationBarView* GetLocationBarView() const;