Platform WebUnitTestSupport onion soup: remove more indirect methods

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

 /*
  * Copyright (C) 2014 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 149 matching lines @@
 
     PassRefPtr<SharedBuffer> serialize(const char *title, const char *mime,  MHTMLArchive::EncodingPolicy encodingPolicy)
     {
         return generateMHTMLData(m_resources, encodingPolicy, title, mime);
     }
 
 private:
     PassRefPtr<SharedBuffer> readFile(const char* fileName)
     {
         String filePath = m_filePath + fileName;
-        return Platform::current()->unitTestSupport()->readFromFile(filePath);
+        return testing::readFromFile(filePath);
     }
 
     String m_filePath;
     Vector<SerializedResource> m_resources;
     FrameTestHelpers::WebViewHelper m_helper;
 };
 
 // Checks that the domain is set to the actual MHTML file, not the URL it was
 // generated from.
 TEST_F(MHTMLTest, CheckDomain)
@@ skipping 45 matching lines @@
             ASSERT_TRUE(expectedEncoding);
             EXPECT_NE(line.find(expectedEncoding), std::string::npos);
             expectedEncoding = 0;
             sectionCheckedCount++;
         }
     }
     EXPECT_EQ(12, sectionCheckedCount);
 }
 
 } // namespace blink