Add a fragment change exception to history API's unique origin restrictions.

third_party/WebKit/Source/core/frame/History.h

 /*
  * Copyright (C) 2007 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef History_h
 #define History_h
 
+#include "base/gtest_prod_util.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "bindings/core/v8/SerializedScriptValue.h"
 #include "core/loader/FrameLoaderTypes.h"
 #include "core/frame/DOMWindowProperty.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
 
 namespace blink {
 
 class LocalFrame;
 class KURL;
 class ExecutionContext;
 class ExceptionState;
+class SecurityOrigin;
 
-class History final : public GarbageCollectedFinalized<History>, public ScriptWrappable, public DOMWindowProperty {
+class CORE_EXPORT History final : public GarbageCollectedFinalized<History>, public ScriptWrappable, public DOMWindowProperty {
     DEFINE_WRAPPERTYPEINFO();
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(History);
 public:
     static History* create(LocalFrame* frame)
     {
         return new History(frame);
     }
 
     unsigned length() const;
     SerializedScriptValue* state();
@@ skipping 15 matching lines @@
     void setScrollRestoration(const String& value);
     String scrollRestoration();
 
     bool stateChanged() const;
     bool isSameAsCurrentState(SerializedScriptValue*) const;
 
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
+    FRIEND_TEST_ALL_PREFIXES(HistoryTest, CanChangeToURL);
+    FRIEND_TEST_ALL_PREFIXES(HistoryTest, CanChangeToURLInFileOrigin);
+    FRIEND_TEST_ALL_PREFIXES(HistoryTest, CanChangeToURLInUniqueOrigin);
+
     explicit History(LocalFrame*);
 
+    static bool canChangeToUrl(const KURL&, SecurityOrigin*, const KURL& documentURL);
+
     KURL urlForState(const String& url);
-    bool canChangeToUrl(const KURL& url);
 
     void stateObjectAdded(PassRefPtr<SerializedScriptValue>, const String& title, const String& url, HistoryScrollRestorationType, FrameLoadType, ExceptionState&);
     SerializedScriptValue* stateInternal() const;
     HistoryScrollRestorationType scrollRestorationInternal() const;
 
     RefPtr<SerializedScriptValue> m_lastStateObjectRequested;
 };
 
 } // namespace blink
 
 #endif // History_h