Add ExtensionFunctionDispatcher::Delegate::GetAssociatedTabContents

chrome/browser/extensions/extension_function_dispatcher.h

Index: chrome/browser/extensions/extension_function_dispatcher.h
diff --git a/chrome/browser/extensions/extension_function_dispatcher.h b/chrome/browser/extensions/extension_function_dispatcher.h
index fc50c17a2f13484c582f0c9cde938b434db86572..8f1f6d958d1604a551e844e3269f36bc7b2a49e9 100644
--- a/chrome/browser/extensions/extension_function_dispatcher.h
+++ b/chrome/browser/extensions/extension_function_dispatcher.h
@@ -21,6 +21,7 @@ class ExtensionHost;
 class Profile;
 class RenderViewHost;
 class RenderViewHostDelegate;
+class TabContents;
 class Value;
 
 // A factory function for creating new ExtensionFunction instances.
@@ -48,6 +49,12 @@ class ExtensionFunctionDispatcher {
       return NULL;
     }
 
+    // Asks the delegate for any relevant TabContents associated with this
+    // context. For example, the TabContents in which an infobar or
+    // chrome-extension://<id> URL are being shown. Callers must check for a
+    // NULL return value (as in the case of a background page).
+    virtual TabContents* associated_tab_contents() = 0;
+
    protected:
     virtual ~Delegate() {}
   };