[wip] Introduce SiteInstanceKeepAlive.

content/browser/frame_host/navigation_controller_impl_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/stl_util.h"
@@ skipping 64 matching lines @@
 
   virtual ~MockScreenshotManager() {
   }
 
   void TakeScreenshotFor(content::NavigationEntryImpl* entry) {
     SkBitmap bitmap;
     bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1, 1);
     bitmap.allocPixels();
     bitmap.eraseRGB(0, 0, 0);
     encoding_screenshot_in_progress_ = true;
-    OnScreenshotTaken(entry->GetUniqueID(), true, bitmap);
+    OnScreenshotTaken(entry->GetUniqueID(), NULL, true, bitmap);
     WaitUntilScreenshotIsReady();
   }
 
   int GetScreenshotCount() {
     return content::NavigationEntryScreenshotManager::GetScreenshotCount();
   }
 
   void WaitUntilScreenshotIsReady() {
     if (!encoding_screenshot_in_progress_)
       return;
@@ skipping 3921 matching lines @@
   EXPECT_EQ(1, controller.GetEntryCount());
   EXPECT_EQ(0, controller.GetCurrentEntryIndex());
   EXPECT_EQ(0, controller.GetLastCommittedEntryIndex());
   EXPECT_EQ(-1, controller.GetPendingEntryIndex());
   EXPECT_FALSE(controller.CanGoBack());
   EXPECT_FALSE(controller.CanGoForward());
   EXPECT_EQ(url4, controller.GetVisibleEntry()->GetURL());
 }
 
 }  // namespace content