Rewrite references to "wtf/" to "platform/wtf/" in platform/testing.

third_party/WebKit/Source/platform/testing/FontTestHelpers.cpp

 // Copyright 2016 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 "platform/testing/FontTestHelpers.h"
 
 #include "platform/fonts/Font.h"
 #include "platform/fonts/FontCustomPlatformData.h"
 #include "platform/fonts/FontDescription.h"
 #include "platform/fonts/FontSelector.h"
 #include "platform/testing/UnitTestHelpers.h"
-#include "wtf/PassRefPtr.h"
-#include "wtf/RefPtr.h"
+#include "platform/wtf/PassRefPtr.h"
+#include "platform/wtf/RefPtr.h"
 
 namespace blink {
 namespace testing {
 
 namespace {
 
 class TestFontSelector : public FontSelector {
  public:
   static TestFontSelector* create(const String& path) {
     RefPtr<SharedBuffer> fontBuffer = testing::readFromFile(path);
@@ skipping 42 matching lines @@
   fontDescription.setSpecifiedSize(size);
   fontDescription.setComputedSize(size);
 
   Font font(fontDescription);
   font.update(TestFontSelector::create(fontPath));
   return font;
 }
 
 }  // namespace testing
 }  // namespace blink