Avoid image resource leaks in frame-related unit tests.

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

 /*
  * Copyright (C) 2013 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 89 matching lines @@
 
 const int kfakeTouchId = 7;
 
 class TouchActionTest : public ::testing::Test {
 public:
     TouchActionTest()
         : m_baseURL("http://www.test.com/")
     {
         URLTestHelpers::registerMockedURLFromBaseURL(WebString::fromUTF8(m_baseURL), "touch-action-tests.css");
         URLTestHelpers::registerMockedURLFromBaseURL(WebString::fromUTF8(m_baseURL), "touch-action-tests.js");
+        URLTestHelpers::registerMockedURLFromBaseURL(WebString::fromUTF8(m_baseURL), "white-1x1.png");
     }
 
     void TearDown() override
     {
         Platform::current()->unitTestSupport()->unregisterAllMockedURLs();
     }
 
 protected:
     void runTouchActionTest(std::string file);
     void runShadowDOMTest(std::string file);
@@ skipping 218 matching lines @@
 {
     runShadowDOMTest("touch-action-shadow-dom.html");
 }
 
 TEST_F(TouchActionTest, Pan)
 {
     runTouchActionTest("touch-action-pan.html");
 }
 
 } // namespace blink