RemoteFontFaceSource should keep FontCustomPlatformData over FontResource revalidation

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 <memory>
 
 namespace blink {
 namespace testing {
 
 namespace {
 
 class TestFontSelector : public FontSelector {
  public:
   static TestFontSelector* create(const String& path) {
     RefPtr<SharedBuffer> fontBuffer = testing::readFromFile(path);
@@ skipping 16 matching lines @@
                        const AtomicString& familyName,
                        const String& text) override {}
   void willUseRange(const FontDescription&,
                     const AtomicString& familyName,
                     const FontDataForRangeSet&) override{};
 
   unsigned version() const override { return 0; }
   void fontCacheInvalidated() override {}
 
  private:
-  TestFontSelector(std::unique_ptr<FontCustomPlatformData> customPlatformData)
-      : m_customPlatformData(std::move(customPlatformData)) {}
+  TestFontSelector(PassRefPtr<FontCustomPlatformData> customPlatformData)
+      : m_customPlatformData(customPlatformData) {}
 
-  std::unique_ptr<FontCustomPlatformData> m_customPlatformData;
+  RefPtr<FontCustomPlatformData> m_customPlatformData;
 };
 
 }  // namespace
 
 Font createTestFont(const AtomicString& familyName,
                     const String& fontPath,
                     float size) {
   FontFamily family;
   family.setFamily(familyName);
 
   FontDescription fontDescription;
   fontDescription.setFamily(family);
   fontDescription.setSpecifiedSize(size);
   fontDescription.setComputedSize(size);
 
   Font font(fontDescription);
   font.update(TestFontSelector::create(fontPath));
   return font;
 }
 
 }  // namespace testing
 }  // namespace blink