Move ScriptWrappable and dependencies to platform/bindings

third_party/WebKit/Source/bindings/core/v8/V8ValueCache.cpp

Index: third_party/WebKit/Source/bindings/core/v8/V8ValueCache.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8ValueCache.cpp b/third_party/WebKit/Source/bindings/core/v8/V8ValueCache.cpp
deleted file mode 100644
index da82a0274099059ea2aa309c4478480c90e1e2e1..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/bindings/core/v8/V8ValueCache.cpp
+++ /dev/null
@@ -1,157 +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:
- * 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 INC. AND ITS 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 APPLE INC. OR ITS 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 "bindings/core/v8/V8ValueCache.h"
-
-#include <utility>
-#include "bindings/core/v8/V8Binding.h"
-#include "platform/wtf/text/StringHash.h"
-
-namespace blink {
-
-StringCacheMapTraits::MapType* StringCacheMapTraits::MapFromWeakCallbackInfo(
-    const v8::WeakCallbackInfo<WeakCallbackDataType>& data) {
-  return &(V8PerIsolateData::From(data.GetIsolate())
-               ->GetStringCache()
-               ->string_cache_);
-}
-
-void StringCacheMapTraits::Dispose(v8::Isolate* isolate,
-                                   v8::Global<v8::String> value,
-                                   StringImpl* key) {
-  V8PerIsolateData::From(isolate)->GetStringCache()->InvalidateLastString();
-  key->Deref();
-}
-
-void StringCacheMapTraits::DisposeWeak(
-    const v8::WeakCallbackInfo<WeakCallbackDataType>& data) {
-  V8PerIsolateData::From(data.GetIsolate())
-      ->GetStringCache()
-      ->InvalidateLastString();
-  data.GetParameter()->Deref();
-}
-
-void StringCacheMapTraits::OnWeakCallback(
-    const v8::WeakCallbackInfo<WeakCallbackDataType>& data) {
-  V8PerIsolateData::From(data.GetIsolate())
-      ->GetStringCache()
-      ->InvalidateLastString();
-}
-
-void StringCache::Dispose() {
-  // The MapType::Dispose callback calls StringCache::InvalidateLastString,
-  // which will only work while the destructor has not yet finished. Thus,
-  // we need to clear the map before the destructor has completed.
-  string_cache_.Clear();
-}
-
-static v8::Local<v8::String> MakeExternalString(v8::Isolate* isolate,
-                                                const String& string) {
-  if (string.Is8Bit()) {
-    StringResource8* string_resource = new StringResource8(string);
-    v8::Local<v8::String> new_string;
-    if (!v8::String::NewExternalOneByte(isolate, string_resource)
-             .ToLocal(&new_string)) {
-      delete string_resource;
-      return v8::String::Empty(isolate);
-    }
-    return new_string;
-  }
-
-  StringResource16* string_resource = new StringResource16(string);
-  v8::Local<v8::String> new_string;
-  if (!v8::String::NewExternalTwoByte(isolate, string_resource)
-           .ToLocal(&new_string)) {
-    delete string_resource;
-    return v8::String::Empty(isolate);
-  }
-  return new_string;
-}
-
-v8::Local<v8::String> StringCache::V8ExternalStringSlow(
-    v8::Isolate* isolate,
-    StringImpl* string_impl) {
-  if (!string_impl->length())
-    return v8::String::Empty(isolate);
-
-  StringCacheMapTraits::MapType::PersistentValueReference cached_v8_string =
-      string_cache_.GetReference(string_impl);
-  if (!cached_v8_string.IsEmpty()) {
-    last_string_impl_ = string_impl;
-    last_v8_string_ = cached_v8_string;
-    return last_v8_string_.NewLocal(isolate);
-  }
-
-  return CreateStringAndInsertIntoCache(isolate, string_impl);
-}
-
-void StringCache::SetReturnValueFromStringSlow(
-    v8::ReturnValue<v8::Value> return_value,
-    StringImpl* string_impl) {
-  if (!string_impl->length()) {
-    return_value.SetEmptyString();
-    return;
-  }
-
-  StringCacheMapTraits::MapType::PersistentValueReference cached_v8_string =
-      string_cache_.GetReference(string_impl);
-  if (!cached_v8_string.IsEmpty()) {
-    last_string_impl_ = string_impl;
-    last_v8_string_ = cached_v8_string;
-    last_v8_string_.SetReturnValue(return_value);
-    return;
-  }
-
-  return_value.Set(
-      CreateStringAndInsertIntoCache(return_value.GetIsolate(), string_impl));
-}
-
-v8::Local<v8::String> StringCache::CreateStringAndInsertIntoCache(
-    v8::Isolate* isolate,
-    StringImpl* string_impl) {
-  DCHECK(!string_cache_.Contains(string_impl));
-  DCHECK(string_impl->length());
-
-  v8::Local<v8::String> new_string =
-      MakeExternalString(isolate, String(string_impl));
-  DCHECK(!new_string.IsEmpty());
-  DCHECK(new_string->Length());
-
-  v8::UniquePersistent<v8::String> wrapper(isolate, new_string);
-
-  string_impl->Ref();
-  wrapper.MarkIndependent();
-  string_cache_.Set(string_impl, std::move(wrapper), &last_v8_string_);
-  last_string_impl_ = string_impl;
-
-  return new_string;
-}
-
-void StringCache::InvalidateLastString() {
-  last_string_impl_ = nullptr;
-  last_v8_string_.Reset();
-}
-
-}  // namespace blink