Make extension commands grant the activeTab permission.

chrome/browser/ui/cocoa/browser_window_cocoa.mm

Index: chrome/browser/ui/cocoa/browser_window_cocoa.mm
diff --git a/chrome/browser/ui/cocoa/browser_window_cocoa.mm b/chrome/browser/ui/cocoa/browser_window_cocoa.mm
index 6032b4f3171fd84cfbe507e27753ab3b034ce676..3ef5806ce9c8e2cdfb48c608b310c4b4c297ef92 100644
--- a/chrome/browser/ui/cocoa/browser_window_cocoa.mm
+++ b/chrome/browser/ui/cocoa/browser_window_cocoa.mm
@@ -13,6 +13,7 @@
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/bookmarks/bookmark_utils.h"
 #include "chrome/browser/download/download_shelf.h"
+#include "chrome/browser/extensions/tab_helper.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
@@ -619,6 +620,17 @@ void BrowserWindowCocoa::Observe(int type,
   }
 }
 
+extensions::ActiveTabPermissionGranter*
+    BrowserWindowCocoa::GetActiveTabPermissionGranter() {
+  TabContents* tab_contents =
+      browser_->tab_strip_model()->GetActiveTabContents();
+  if (!tab_contents)
+    return NULL;
+  extensions::TabHelper* tab_helper =
+      extensions::TabHelper::FromWebContents(tab_contents->web_contents());
+  return tab_helper ? tab_helper->active_tab_permission_granter() : NULL;
+}
+
 void BrowserWindowCocoa::DestroyBrowser() {
   [controller_ destroyBrowser];