rAc: split TestableAutofillDialogView implementation into its own class

chrome/browser/ui/autofill/autofill_dialog_controller_unittest.cc

Index: chrome/browser/ui/autofill/autofill_dialog_controller_unittest.cc
diff --git a/chrome/browser/ui/autofill/autofill_dialog_controller_unittest.cc b/chrome/browser/ui/autofill/autofill_dialog_controller_unittest.cc
index 0cced33ac28a4612777ec13d33f002612afc9948..46d8ba81f5f00319fde96054a7c0899f36aa0eb3 100644
--- a/chrome/browser/ui/autofill/autofill_dialog_controller_unittest.cc
+++ b/chrome/browser/ui/autofill/autofill_dialog_controller_unittest.cc
@@ -183,9 +183,6 @@ class TestAutofillDialogView : public AutofillDialogView {
       OVERRIDE {
     *output = outputs_[section];
   }
-  virtual TestableAutofillDialogView* GetTestableView() OVERRIDE {
-    return NULL;
-  }
 
   virtual base::string16 GetCvc() OVERRIDE { return base::string16(); }
   virtual bool HitTestInput(ServerFieldType type,