Move CrossThreadCopier from platform/ to wtf/

third_party/WebKit/Source/platform/CrossThreadCopier.cpp

Index: third_party/WebKit/Source/platform/CrossThreadCopier.cpp
diff --git a/third_party/WebKit/Source/platform/CrossThreadCopier.cpp b/third_party/WebKit/Source/platform/CrossThreadCopier.cpp
deleted file mode 100644
index 4f60be15912308eea487b8d201350487dab2a73e..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/platform/CrossThreadCopier.cpp
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * Copyright (C) 2009 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
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "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 THE COPYRIGHT
- * OWNER 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.
- */
-
-#include "platform/CrossThreadCopier.h"
-
-#include "platform/network/ResourceError.h"
-#include "platform/network/ResourceRequest.h"
-#include "platform/network/ResourceResponse.h"
-#include "platform/weborigin/KURL.h"
-#include "wtf/text/WTFString.h"
-#include <memory>
-
-namespace blink {
-
-CrossThreadCopier<KURL>::Type CrossThreadCopier<KURL>::copy(const KURL& url)
-{
-    return url.copy();
-}
-
-CrossThreadCopier<String>::Type CrossThreadCopier<String>::copy(const String& str)
-{
-    return str.isolatedCopy();
-}
-
-CrossThreadCopier<ResourceError>::Type CrossThreadCopier<ResourceError>::copy(const ResourceError& error)
-{
-    return error.copy();
-}
-
-CrossThreadCopier<ResourceRequest>::Type CrossThreadCopier<ResourceRequest>::copy(const ResourceRequest& request)
-{
-    return passed(request.copyData());
-}
-
-CrossThreadCopier<ResourceResponse>::Type CrossThreadCopier<ResourceResponse>::copy(const ResourceResponse& response)
-{
-    return passed(response.copyData());
-}
-
-// Test CrossThreadCopier using static_assert.
-
-// Verify that ThreadSafeRefCounted objects get handled correctly.
-class CopierThreadSafeRefCountedTest : public ThreadSafeRefCounted<CopierThreadSafeRefCountedTest> {
-};
-
-// Add a generic specialization which will let's us verify that no other template matches.
-template<typename T> struct CrossThreadCopierBase<T, false> {
-    typedef int Type;
-};
-
-static_assert((std::is_same<
-    PassRefPtr<CopierThreadSafeRefCountedTest>,
-    CrossThreadCopier<PassRefPtr<CopierThreadSafeRefCountedTest>>::Type
-    >::value),
-    "PassRefPtr + ThreadSafeRefCounted should pass CrossThreadCopier");
-static_assert((std::is_same<
-    RefPtr<CopierThreadSafeRefCountedTest>,
-    CrossThreadCopier<RefPtr<CopierThreadSafeRefCountedTest>>::Type
-    >::value),
-    "RefPtr + ThreadSafeRefCounted should pass CrossThreadCopier");
-static_assert((std::is_same<
-    int,
-    CrossThreadCopier<CopierThreadSafeRefCountedTest*>::Type
-    >::value),
-    "Raw pointer + ThreadSafeRefCounted should NOT pass CrossThreadCopier");
-
-// Verify that RefCounted objects only match our generic template which exposes Type as int.
-class CopierRefCountedTest : public RefCounted<CopierRefCountedTest> {
-};
-
-static_assert((std::is_same<
-    int,
-    CrossThreadCopier<CopierRefCountedTest*>::Type
-    >::value),
-    "Raw pointer + RefCounted should NOT pass CrossThreadCopier");
-
-// Verify that std::unique_ptr gets passed through.
-static_assert((std::is_same<
-    std::unique_ptr<float>,
-    CrossThreadCopier<std::unique_ptr<float>>::Type
-    >::value),
-    "std::unique_ptr test");
-
-} // namespace blink