Split methods for ClientHintsPreferences from FrameFetchContext

third_party/WebKit/Source/core/loader/FrameClientHintsPreferencesContext.h

Index: third_party/WebKit/Source/core/loader/FrameClientHintsPreferencesContext.h
diff --git a/third_party/WebKit/Source/core/loader/FrameClientHintsPreferencesContext.h b/third_party/WebKit/Source/core/loader/FrameClientHintsPreferencesContext.h
new file mode 100644
index 0000000000000000000000000000000000000000..260842af3b3c6d7679ad5246d71b7b919ecaf544
--- /dev/null
+++ b/third_party/WebKit/Source/core/loader/FrameClientHintsPreferencesContext.h
@@ -0,0 +1,32 @@
+// 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.
+
+#ifndef FrameClientHintsPreferencesContext_h
+#define FrameClientHintsPreferencesContext_h
+
+#include "core/fetch/ClientHintsPreferences.h"
+#include "core/frame/Frame.h"
+#include "platform/heap/Persistent.h"
+#include "wtf/Allocator.h"
+
+namespace blink {
+
+class FrameClientHintsPreferencesContext final
+    : public ClientHintsPreferences::Context {
+  STACK_ALLOCATED();
+
+ public:
+  explicit FrameClientHintsPreferencesContext(Frame*);
+
+  void countClientHintsDPR() override;
+  void countClientHintsResourceWidth() override;
+  void countClientHintsViewportWidth() override;
+
+ private:
+  Member<Frame> m_frame;
+};
+
+}  // namespace blink
+
+#endif  // FrameClientHintsPreferencesContext_h