Avoid image resource leaks in frame-related unit tests.

third_party/WebKit/Source/web/tests/WebFrameTest.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 1638 matching lines @@
     webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
     webViewHelper.webView()->layout();
 
     EXPECT_EQ(0, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height());
 }
 
 TEST_P(ParameterizedWebFrameTest, WideViewportAndWideContentWithInitialScale)
 {
     UseMockScrollbarSettings mockScrollbarSettings;
     registerMockedHttpURLLoad("wide_document_width_viewport.html");
+    registerMockedHttpURLLoad("white-1x1.png");
 
     FixedLayoutTestWebViewClient client;
     client.m_screenInfo.deviceScaleFactor = 1;
     int viewportWidth = 600;
     int viewportHeight = 800;
 
     FrameTestHelpers::WebViewHelper webViewHelper(this);
     webViewHelper.initializeAndLoad("about:blank", true, 0, &client, enableViewportSettings);
     webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
     webViewHelper.webView()->settings()->setUseWideViewport(true);
@@ skipping 6616 matching lines @@
     EXPECT_TRUE(resource);
     EXPECT_NE(0, resource->loadFinishTime());
 
     DocumentLoader* loader = document->loader();
 
     EXPECT_TRUE(loader);
     EXPECT_EQ(loader->timing().responseEnd(), resource->loadFinishTime());
 }
 
 } // namespace blink