Split V8Binding

third_party/WebKit/Source/bindings/core/v8/V8Binding.h

Index: third_party/WebKit/Source/bindings/core/v8/V8Binding.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8Binding.h b/third_party/WebKit/Source/bindings/core/v8/V8Binding.h
index f14d0f6aa2d144028a2f165f035cae3cfcf5ff6f..cb87bf747350a04de3022a51b527d6eb65e03c01 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8Binding.h
+++ b/third_party/WebKit/Source/bindings/core/v8/V8Binding.h
@@ -1,53 +1,46 @@
 /*
-* Copyright (C) 2009 Google Inc. All rights reserved.
-* Copyright (C) 2012 Ericsson AB. 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.
-*/
+ * Copyright (C) 2009 Google Inc. All rights reserved.
+ * Copyright (C) 2012 Ericsson AB. 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.
+ */
 
 #ifndef V8Binding_h
 #define V8Binding_h
 
 #include "bindings/core/v8/DOMDataStore.h"
 #include "bindings/core/v8/DOMWrapperWorld.h"
-#include "bindings/core/v8/ExceptionMessages.h"
-#include "bindings/core/v8/ExceptionState.h"
-#include "bindings/core/v8/NativeValueTraits.h"
-#include "bindings/core/v8/ScriptState.h"
-#include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/ScriptWrappable.h"
+#include "bindings/core/v8/StringResource.h"
 #include "bindings/core/v8/V8BindingMacros.h"
 #include "bindings/core/v8/V8PerIsolateData.h"
 #include "bindings/core/v8/V8ScriptRunner.h"
-#include "bindings/core/v8/V8StringResource.h"
-#include "bindings/core/v8/V8ThrowException.h"
 #include "bindings/core/v8/V8ValueCache.h"
 #include "core/CoreExport.h"
-#include "core/dom/ArrayBufferViewHelpers.h"
 #include "platform/heap/Handle.h"
 #include "platform/wtf/text/AtomicString.h"
 #include "platform/wtf/text/StringView.h"
@@ -55,17 +48,6 @@
 
 namespace blink {
 

[haraken, 2017/04/21 20:09:41]

Would you add a comment and mention what should be in V8Binding and what should
be in V8BindingForCore?

[adithyas, 2017/04/24 14:38:27]

Done.

-class DOMWindow;
-class EventListener;
-class ExceptionState;
-class ExecutionContext;
-class FlexibleArrayBufferView;
-class Frame;
-class LocalDOMWindow;
-class LocalFrame;
-class NodeFilter;
-class XPathNSResolver;
-
 template <typename T>
 struct V8TypeOf {
   STATIC_ONLY(V8TypeOf);
@@ -189,23 +171,12 @@ inline void V8SetReturnValue(const CallbackInfo& callback_info,
   V8SetReturnValue(callback_info, impl, callback_info.Holder());
 }
 
-template <typename CallbackInfo>
-inline void V8SetReturnValue(const CallbackInfo& callback_info, Node* impl) {
-  V8SetReturnValue(callback_info, ScriptWrappable::FromNode(impl));
-}
-
 template <typename CallbackInfo, typename T>
 inline void V8SetReturnValue(const CallbackInfo& callback_info,
                              PassRefPtr<T> impl) {
   V8SetReturnValue(callback_info, impl.Get());
 }
 
-template <typename CallbackInfo, typename T>
-inline void V8SetReturnValue(const CallbackInfo& callbackInfo,
-                             NotShared<T> notShared) {
-  V8SetReturnValue(callbackInfo, notShared.View());
-}
-
 template <typename CallbackInfo>
 inline void V8SetReturnValueForMainWorld(const CallbackInfo& callback_info,
                                          ScriptWrappable* impl) {
@@ -244,14 +215,6 @@ inline void V8SetReturnValueFast(const CallbackInfo& callback_info,
   V8SetReturnValue(callback_info, wrapper);
 }
 
-template <typename CallbackInfo>
-inline void V8SetReturnValueFast(const CallbackInfo& callback_info,
-                                 Node* impl,
-                                 const ScriptWrappable* wrappable) {
-  V8SetReturnValueFast(callback_info, ScriptWrappable::FromNode(impl),
-                       wrappable);
-}
-
 template <typename CallbackInfo, typename T, typename Wrappable>
 inline void V8SetReturnValueFast(const CallbackInfo& callback_info,
                                  PassRefPtr<T> impl,
@@ -266,13 +229,6 @@ inline void V8SetReturnValueFast(const CallbackInfo& callback_info,
   V8SetReturnValue(callback_info, handle);
 }
 
-template <typename CallbackInfo, typename T>
-inline void V8SetReturnValueFast(const CallbackInfo& callbackInfo,
-                                 NotShared<T> notShared,
-                                 const ScriptWrappable* wrappable) {
-  V8SetReturnValueFast(callbackInfo, notShared.View(), wrappable);
-}
-
 // Convert v8::String to a WTF::String. If the V8 string is not already
 // an external string then it is transformed into an external string at this
 // point to avoid repeated conversions.
@@ -391,653 +347,16 @@ inline v8::Local<v8::Value> V8Undefined() {
   return v8::Local<v8::Value>();
 }
 
-// Conversion flags, used in toIntXX/toUIntXX.
-enum IntegerConversionConfiguration {
-  kNormalConversion,
-  kEnforceRange,
-  kClamp
-};
-
-// Convert a value to a boolean.
-CORE_EXPORT bool ToBooleanSlow(v8::Isolate*,
-                               v8::Local<v8::Value>,
-                               ExceptionState&);
-inline bool ToBoolean(v8::Isolate* isolate,
-                      v8::Local<v8::Value> value,
-                      ExceptionState& exception_state) {
-  if (LIKELY(value->IsBoolean()))
-    return value.As<v8::Boolean>()->Value();
-  return ToBooleanSlow(isolate, value, exception_state);
-}
-
-// Convert a value to a 8-bit signed integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-byte
-CORE_EXPORT int8_t ToInt8(v8::Isolate*,
-                          v8::Local<v8::Value>,
-                          IntegerConversionConfiguration,
-                          ExceptionState&);
-
-// Convert a value to a 8-bit unsigned integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-octet
-CORE_EXPORT uint8_t ToUInt8(v8::Isolate*,
-                            v8::Local<v8::Value>,
-                            IntegerConversionConfiguration,
-                            ExceptionState&);
-
-// Convert a value to a 16-bit signed integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-short
-CORE_EXPORT int16_t ToInt16(v8::Isolate*,
-                            v8::Local<v8::Value>,
-                            IntegerConversionConfiguration,
-                            ExceptionState&);
-
-// Convert a value to a 16-bit unsigned integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-unsigned-short
-CORE_EXPORT uint16_t ToUInt16(v8::Isolate*,
-                              v8::Local<v8::Value>,
-                              IntegerConversionConfiguration,
-                              ExceptionState&);
-
-// Convert a value to a 32-bit signed integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-long
-CORE_EXPORT int32_t ToInt32Slow(v8::Isolate*,
-                                v8::Local<v8::Value>,
-                                IntegerConversionConfiguration,
-                                ExceptionState&);
-inline int32_t ToInt32(v8::Isolate* isolate,
-                       v8::Local<v8::Value> value,
-                       IntegerConversionConfiguration configuration,
-                       ExceptionState& exception_state) {
-  // Fast case. The value is already a 32-bit integer.
-  if (LIKELY(value->IsInt32()))
-    return value.As<v8::Int32>()->Value();
-  return ToInt32Slow(isolate, value, configuration, exception_state);
-}
-
-// Convert a value to a 32-bit unsigned integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-unsigned-long
-CORE_EXPORT uint32_t ToUInt32Slow(v8::Isolate*,
-                                  v8::Local<v8::Value>,
-                                  IntegerConversionConfiguration,
-                                  ExceptionState&);
-inline uint32_t ToUInt32(v8::Isolate* isolate,
-                         v8::Local<v8::Value> value,
-                         IntegerConversionConfiguration configuration,
-                         ExceptionState& exception_state) {
-  // Fast case. The value is already a 32-bit unsigned integer.
-  if (LIKELY(value->IsUint32()))
-    return value.As<v8::Uint32>()->Value();
-
-  // Fast case. The value is a 32-bit signed integer with NormalConversion
-  // configuration.
-  if (LIKELY(value->IsInt32() && configuration == kNormalConversion))
-    return value.As<v8::Int32>()->Value();
-
-  return ToUInt32Slow(isolate, value, configuration, exception_state);
-}
-
-// Convert a value to a 64-bit signed integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-long-long
-CORE_EXPORT int64_t ToInt64Slow(v8::Isolate*,
-                                v8::Local<v8::Value>,
-                                IntegerConversionConfiguration,
-                                ExceptionState&);
-inline int64_t ToInt64(v8::Isolate* isolate,
-                       v8::Local<v8::Value> value,
-                       IntegerConversionConfiguration configuration,
-                       ExceptionState& exception_state) {
-  // Clamping not supported for int64_t/long long int. See
-  // Source/wtf/MathExtras.h.
-  DCHECK_NE(configuration, kClamp);
-
-  // Fast case. The value is a 32-bit integer.
-  if (LIKELY(value->IsInt32()))
-    return value.As<v8::Int32>()->Value();
-
-  return ToInt64Slow(isolate, value, configuration, exception_state);
-}
-
-// Convert a value to a 64-bit unsigned integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-unsigned-long-long
-CORE_EXPORT uint64_t ToUInt64Slow(v8::Isolate*,
-                                  v8::Local<v8::Value>,
-                                  IntegerConversionConfiguration,
-                                  ExceptionState&);
-inline uint64_t ToUInt64(v8::Isolate* isolate,
-                         v8::Local<v8::Value> value,
-                         IntegerConversionConfiguration configuration,
-                         ExceptionState& exception_state) {
-  // Fast case. The value is a 32-bit unsigned integer.
-  if (LIKELY(value->IsUint32()))
-    return value.As<v8::Uint32>()->Value();
-
-  if (LIKELY(value->IsInt32() && configuration == kNormalConversion))
-    return value.As<v8::Int32>()->Value();
-
-  return ToUInt64Slow(isolate, value, configuration, exception_state);
-}
-
-// Convert a value to a double precision float, which might fail.
-CORE_EXPORT double ToDoubleSlow(v8::Isolate*,
-                                v8::Local<v8::Value>,
-                                ExceptionState&);
-inline double ToDouble(v8::Isolate* isolate,
-                       v8::Local<v8::Value> value,
-                       ExceptionState& exception_state) {
-  if (LIKELY(value->IsNumber()))
-    return value.As<v8::Number>()->Value();
-  return ToDoubleSlow(isolate, value, exception_state);
-}
-
-// Convert a value to a double precision float, throwing on non-finite values.
-CORE_EXPORT double ToRestrictedDouble(v8::Isolate*,
-                                      v8::Local<v8::Value>,
-                                      ExceptionState&);
-
-// Convert a value to a single precision float, which might fail.
-inline float ToFloat(v8::Isolate* isolate,
-                     v8::Local<v8::Value> value,
-                     ExceptionState& exception_state) {
-  return static_cast<float>(ToDouble(isolate, value, exception_state));
-}
-
-// Convert a value to a single precision float, throwing on non-finite values.
-CORE_EXPORT float ToRestrictedFloat(v8::Isolate*,
-                                    v8::Local<v8::Value>,
-                                    ExceptionState&);
-
-// Converts a value to a String, throwing if any code unit is outside 0-255.
-CORE_EXPORT String ToByteString(v8::Isolate*,
-                                v8::Local<v8::Value>,
-                                ExceptionState&);
-
-// Converts a value to a String, replacing unmatched UTF-16 surrogates with
-// replacement characters.
-CORE_EXPORT String ToUSVString(v8::Isolate*,
-                               v8::Local<v8::Value>,
-                               ExceptionState&);
-
 inline v8::Local<v8::Boolean> V8Boolean(bool value, v8::Isolate* isolate) {
   return value ? v8::True(isolate) : v8::False(isolate);
 }
 
-inline double ToCoreDate(v8::Isolate* isolate,
-                         v8::Local<v8::Value> object,
-                         ExceptionState& exception_state) {
-  if (object->IsNull())
-    return std::numeric_limits<double>::quiet_NaN();
-  if (!object->IsDate()) {
-    exception_state.ThrowTypeError("The provided value is not a Date.");
-    return 0;
-  }
-  return object.As<v8::Date>()->ValueOf();
-}
-
 inline v8::MaybeLocal<v8::Value> V8DateOrNaN(v8::Isolate* isolate,
                                              double value) {
   DCHECK(isolate);
   return v8::Date::New(isolate->GetCurrentContext(), value);
 }
 
-// FIXME: Remove the special casing for NodeFilter and XPathNSResolver.
-NodeFilter* ToNodeFilter(v8::Local<v8::Value>,
-                         v8::Local<v8::Object>,
-                         ScriptState*);
-XPathNSResolver* ToXPathNSResolver(ScriptState*, v8::Local<v8::Value>);
-
-bool ToV8Sequence(v8::Local<v8::Value>,
-                  uint32_t& length,
-                  v8::Isolate*,
-                  ExceptionState&);
-
-template <typename T>
-HeapVector<Member<T>> ToMemberNativeArray(v8::Local<v8::Value> value,
-                                          int argument_index,
-                                          v8::Isolate* isolate,
-                                          ExceptionState& exception_state) {
-  v8::Local<v8::Value> v8_value(v8::Local<v8::Value>::New(isolate, value));
-  uint32_t length = 0;
-  if (value->IsArray()) {
-    length = v8::Local<v8::Array>::Cast(v8_value)->Length();
-  } else if (!ToV8Sequence(value, length, isolate, exception_state)) {
-    if (!exception_state.HadException())
-      exception_state.ThrowTypeError(
-          ExceptionMessages::NotAnArrayTypeArgumentOrValue(argument_index));
-    return HeapVector<Member<T>>();
-  }
-
-  using VectorType = HeapVector<Member<T>>;
-  if (length > VectorType::MaxCapacity()) {
-    exception_state.ThrowRangeError("Array length exceeds supported limit.");
-    return VectorType();
-  }
-
-  VectorType result;
-  result.ReserveInitialCapacity(length);
-  v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8_value);
-  v8::TryCatch block(isolate);
-  for (uint32_t i = 0; i < length; ++i) {
-    v8::Local<v8::Value> element;
-    if (!V8Call(object->Get(isolate->GetCurrentContext(), i), element, block)) {
-      exception_state.RethrowV8Exception(block.Exception());
-      return VectorType();
-    }
-    if (V8TypeOf<T>::Type::hasInstance(element, isolate)) {
-      v8::Local<v8::Object> element_object =
-          v8::Local<v8::Object>::Cast(element);
-      result.UncheckedAppend(V8TypeOf<T>::Type::toImpl(element_object));
-    } else {
-      exception_state.ThrowTypeError("Invalid Array element type");
-      return VectorType();
-    }
-  }
-  return result;
-}
-
-template <typename T>
-HeapVector<Member<T>> ToMemberNativeArray(v8::Local<v8::Value> value,
-                                          const String& property_name,
-                                          v8::Isolate* isolate,
-                                          ExceptionState& exception_state) {
-  v8::Local<v8::Value> v8_value(v8::Local<v8::Value>::New(isolate, value));
-  uint32_t length = 0;
-  if (value->IsArray()) {
-    length = v8::Local<v8::Array>::Cast(v8_value)->Length();
-  } else if (!ToV8Sequence(value, length, isolate, exception_state)) {
-    if (!exception_state.HadException())
-      exception_state.ThrowTypeError(
-          ExceptionMessages::NotASequenceTypeProperty(property_name));
-    return HeapVector<Member<T>>();
-  }
-
-  using VectorType = HeapVector<Member<T>>;
-  if (length > VectorType::MaxCapacity()) {
-    exception_state.ThrowRangeError("Array length exceeds supported limit.");
-    return VectorType();
-  }
-
-  VectorType result;
-  result.ReserveInitialCapacity(length);
-  v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8_value);
-  v8::TryCatch block(isolate);
-  for (uint32_t i = 0; i < length; ++i) {
-    v8::Local<v8::Value> element;
-    if (!V8Call(object->Get(isolate->GetCurrentContext(), i), element, block)) {
-      exception_state.RethrowV8Exception(block.Exception());
-      return VectorType();
-    }
-    if (V8TypeOf<T>::Type::hasInstance(element, isolate)) {
-      v8::Local<v8::Object> element_object =
-          v8::Local<v8::Object>::Cast(element);
-      result.UncheckedAppend(V8TypeOf<T>::Type::toImpl(element_object));
-    } else {
-      exception_state.ThrowTypeError("Invalid Array element type");
-      return VectorType();
-    }
-  }
-  return result;
-}
-
-// Converts a JavaScript value to an array as per the Web IDL specification:
-// http://www.w3.org/TR/2012/CR-WebIDL-20120419/#es-array
-template <typename VectorType,
-          typename ValueType = typename VectorType::ValueType>
-VectorType ToImplArray(v8::Local<v8::Value> value,
-                       int argument_index,
-                       v8::Isolate* isolate,
-                       ExceptionState& exception_state) {
-  typedef NativeValueTraits<ValueType> TraitsType;
-
-  uint32_t length = 0;
-  if (value->IsArray()) {
-    length = v8::Local<v8::Array>::Cast(value)->Length();
-  } else if (!ToV8Sequence(value, length, isolate, exception_state)) {
-    if (!exception_state.HadException())
-      exception_state.ThrowTypeError(
-          ExceptionMessages::NotAnArrayTypeArgumentOrValue(argument_index));
-    return VectorType();
-  }
-
-  if (length > VectorType::MaxCapacity()) {
-    exception_state.ThrowRangeError("Array length exceeds supported limit.");
-    return VectorType();
-  }
-
-  VectorType result;
-  result.ReserveInitialCapacity(length);
-  v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(value);
-  v8::TryCatch block(isolate);
-  for (uint32_t i = 0; i < length; ++i) {
-    v8::Local<v8::Value> element;
-    if (!V8Call(object->Get(isolate->GetCurrentContext(), i), element, block)) {
-      exception_state.RethrowV8Exception(block.Exception());
-      return VectorType();
-    }
-    result.UncheckedAppend(
-        TraitsType::NativeValue(isolate, element, exception_state));
-    if (exception_state.HadException())
-      return VectorType();
-  }
-  return result;
-}
-
-template <typename VectorType>
-VectorType ToImplArray(const Vector<ScriptValue>& value,
-                       v8::Isolate* isolate,
-                       ExceptionState& exception_state) {
-  using ValueType = typename VectorType::ValueType;
-  using TraitsType = NativeValueTraits<ValueType>;
-
-  if (value.size() > VectorType::MaxCapacity()) {
-    exception_state.ThrowRangeError("Array length exceeds supported limit.");
-    return VectorType();
-  }
-
-  VectorType result;
-  result.ReserveInitialCapacity(value.size());
-  for (unsigned i = 0; i < value.size(); ++i) {
-    result.UncheckedAppend(
-        TraitsType::NativeValue(isolate, value[i].V8Value(), exception_state));
-    if (exception_state.HadException())
-      return VectorType();
-  }
-  return result;
-}
-
-template <typename VectorType>
-VectorType ToImplArguments(const v8::FunctionCallbackInfo<v8::Value>& info,
-                           int start_index,
-                           ExceptionState& exception_state) {
-  using ValueType = typename VectorType::ValueType;
-  using TraitsType = NativeValueTraits<ValueType>;
-
-  int length = info.Length();
-  VectorType result;
-  if (start_index < length) {
-    if (static_cast<size_t>(length - start_index) > VectorType::MaxCapacity()) {
-      exception_state.ThrowRangeError("Array length exceeds supported limit.");
-      return VectorType();
-    }
-    result.ReserveInitialCapacity(length - start_index);
-    for (int i = start_index; i < length; ++i) {
-      result.UncheckedAppend(
-          TraitsType::NativeValue(info.GetIsolate(), info[i], exception_state));
-      if (exception_state.HadException())
-        return VectorType();
-    }
-  }
-  return result;
-}
-
-// Gets an iterator from an Object.
-CORE_EXPORT v8::Local<v8::Object> GetEsIterator(v8::Isolate*,
-                                                v8::Local<v8::Object>,
-                                                ExceptionState&);
-
-// Validates that the passed object is a sequence type per WebIDL spec
-// http://www.w3.org/TR/2012/CR-WebIDL-20120419/#es-sequence
-inline bool ToV8Sequence(v8::Local<v8::Value> value,
-                         uint32_t& length,
-                         v8::Isolate* isolate,
-                         ExceptionState& exception_state) {
-  // Attempt converting to a sequence if the value is not already an array but
-  // is any kind of object except for a native Date object or a native RegExp
-  // object.
-  DCHECK(!value->IsArray());
-  // FIXME: Do we really need to special case Date and RegExp object?
-  // https://www.w3.org/Bugs/Public/show_bug.cgi?id=22806
-  if (!value->IsObject() || value->IsDate() || value->IsRegExp()) {
-    // The caller is responsible for reporting a TypeError.
-    return false;
-  }
-
-  v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(value);
-  v8::Local<v8::String> length_symbol = V8AtomicString(isolate, "length");
-
-  // FIXME: The specification states that the length property should be used as
-  // fallback, if value is not a platform object that supports indexed
-  // properties. If it supports indexed properties, length should actually be
-  // one greater than value's maximum indexed property index.
-  v8::TryCatch block(isolate);
-  v8::Local<v8::Value> length_value;
-  if (!V8Call(object->Get(isolate->GetCurrentContext(), length_symbol),
-              length_value, block)) {
-    exception_state.RethrowV8Exception(block.Exception());
-    return false;
-  }
-
-  if (length_value->IsUndefined() || length_value->IsNull()) {
-    // The caller is responsible for reporting a TypeError.
-    return false;
-  }
-
-  uint32_t sequence_length;
-  if (!V8Call(length_value->Uint32Value(isolate->GetCurrentContext()),
-              sequence_length, block)) {
-    exception_state.RethrowV8Exception(block.Exception());
-    return false;
-  }
-
-  length = sequence_length;
-  return true;
-}
-// Validates that the passed object is a sequence type per the WebIDL spec: it
-// has a callable @iterator.
-// https://heycam.github.io/webidl/#es-sequence
-CORE_EXPORT bool HasCallableIteratorSymbol(v8::Isolate*,
-                                           v8::Local<v8::Value>,
-                                           ExceptionState&);
-
-// TODO(rakuco): remove the specializations below (and consequently the
-// non-IDLBase version of NativeValueTraitsBase) once we manage to convert all
-// uses of NativeValueTraits to types that derive from IDLBase or for generated
-// IDL interfaces/dictionaries/unions.
-template <>
-struct NativeValueTraits<String> {
-  static inline String NativeValue(v8::Isolate* isolate,
-                                   v8::Local<v8::Value> value,
-                                   ExceptionState& exception_state) {
-    V8StringResource<> string_value(value);
-    if (!string_value.Prepare(exception_state))
-      return String();
-    return string_value;
-  }
-};
-
-template <>
-struct NativeValueTraits<AtomicString> {
-  static inline AtomicString NativeValue(v8::Isolate* isolate,
-                                         v8::Local<v8::Value> value,
-                                         ExceptionState& exception_state) {
-    V8StringResource<> string_value(value);
-    if (!string_value.Prepare(exception_state))
-      return AtomicString();
-    return string_value;
-  }
-};
-
-template <>
-struct NativeValueTraits<int> {
-  static inline int NativeValue(v8::Isolate* isolate,
-                                v8::Local<v8::Value> value,
-                                ExceptionState& exception_state) {
-    return ToInt32(isolate, value, kNormalConversion, exception_state);
-  }
-};
-
-template <>
-struct NativeValueTraits<unsigned> {
-  static inline unsigned NativeValue(v8::Isolate* isolate,
-                                     v8::Local<v8::Value> value,
-                                     ExceptionState& exception_state) {
-    return ToUInt32(isolate, value, kNormalConversion, exception_state);
-  }
-};
-
-template <>
-struct NativeValueTraits<float> {
-  static inline float NativeValue(v8::Isolate* isolate,
-                                  v8::Local<v8::Value> value,
-                                  ExceptionState& exception_state) {
-    return ToFloat(isolate, value, exception_state);
-  }
-};
-
-template <>
-struct NativeValueTraits<double> {
-  static inline double NativeValue(v8::Isolate* isolate,
-                                   v8::Local<v8::Value> value,
-                                   ExceptionState& exception_state) {
-    return ToDouble(isolate, value, exception_state);
-  }
-};
-
-template <>
-struct NativeValueTraits<v8::Local<v8::Value>>
-    : public NativeValueTraitsBase<v8::Local<v8::Value>> {
-  static inline v8::Local<v8::Value> NativeValue(
-      v8::Isolate* isolate,
-      v8::Local<v8::Value> value,
-      ExceptionState& exception_state) {
-    return value;
-  }
-};
-
-template <typename T>
-struct NativeValueTraits<Vector<T>> {
-  static inline Vector<T> NativeValue(v8::Isolate* isolate,
-                                      v8::Local<v8::Value> value,
-                                      ExceptionState& exception_state) {
-    return ToImplArray<Vector<T>>(value, 0, isolate, exception_state);
-  }
-};
-
-CORE_EXPORT v8::Isolate* ToIsolate(ExecutionContext*);
-CORE_EXPORT v8::Isolate* ToIsolate(LocalFrame*);
-
-CORE_EXPORT DOMWindow* ToDOMWindow(v8::Isolate*, v8::Local<v8::Value>);
-LocalDOMWindow* ToLocalDOMWindow(v8::Local<v8::Context>);
-LocalDOMWindow* EnteredDOMWindow(v8::Isolate*);
-CORE_EXPORT LocalDOMWindow* CurrentDOMWindow(v8::Isolate*);
-CORE_EXPORT ExecutionContext* ToExecutionContext(v8::Local<v8::Context>);
-CORE_EXPORT void RegisterToExecutionContextForModules(ExecutionContext* (
-    *to_execution_context_for_modules)(v8::Local<v8::Context>));
-CORE_EXPORT ExecutionContext* CurrentExecutionContext(v8::Isolate*);
-
-// Returns a V8 context associated with a ExecutionContext and a
-// DOMWrapperWorld.  This method returns an empty context if there is no frame
-// or the frame is already detached.
-CORE_EXPORT v8::Local<v8::Context> ToV8Context(ExecutionContext*,
-                                               DOMWrapperWorld&);
-// Returns a V8 context associated with a Frame and a DOMWrapperWorld.
-// This method returns an empty context if the frame is already detached.
-CORE_EXPORT v8::Local<v8::Context> ToV8Context(LocalFrame*, DOMWrapperWorld&);
-// Like toV8Context but also returns the context if the frame is already
-// detached.
-CORE_EXPORT v8::Local<v8::Context> ToV8ContextEvenIfDetached(LocalFrame*,
-                                                             DOMWrapperWorld&);
-
-// These methods can return nullptr if the context associated with the
-// ScriptState has already been detached.
-CORE_EXPORT ScriptState* ToScriptState(LocalFrame*, DOMWrapperWorld&);
-// Do not use this method unless you are sure you should use the main world's
-// ScriptState
-CORE_EXPORT ScriptState* ToScriptStateForMainWorld(LocalFrame*);
-
-// Returns the frame object of the window object associated with
-// a context, if the window is currently being displayed in a Frame.
-CORE_EXPORT LocalFrame* ToLocalFrameIfNotDetached(v8::Local<v8::Context>);
-
-// If 'storage' is non-null, it must be large enough to copy all bytes in the
-// array buffer view into it.  Use allocateFlexibleArrayBufferStorage(v8Value)
-// to allocate it using alloca() in the callers stack frame.
-CORE_EXPORT void ToFlexibleArrayBufferView(v8::Isolate*,
-                                           v8::Local<v8::Value>,
-                                           FlexibleArrayBufferView&,
-                                           void* storage = nullptr);
-
-// Converts a V8 value to an array (an IDL sequence) as per the WebIDL
-// specification: http://heycam.github.io/webidl/#es-sequence
-template <typename VectorType>
-VectorType ToImplSequence(v8::Isolate* isolate,
-                          v8::Local<v8::Value> value,
-                          ExceptionState& exception_state) {
-  using ValueType = typename VectorType::ValueType;
-
-  if (!value->IsObject() || value->IsRegExp()) {
-    exception_state.ThrowTypeError(
-        "The provided value cannot be converted to a sequence.");
-    return VectorType();
-  }
-
-  v8::TryCatch block(isolate);
-  v8::Local<v8::Object> iterator =
-      GetEsIterator(isolate, value.As<v8::Object>(), exception_state);
-  if (exception_state.HadException())
-    return VectorType();
-
-  v8::Local<v8::String> next_key = V8String(isolate, "next");
-  v8::Local<v8::String> value_key = V8String(isolate, "value");
-  v8::Local<v8::String> done_key = V8String(isolate, "done");
-  v8::Local<v8::Context> context = isolate->GetCurrentContext();
-  VectorType result;
-  while (true) {
-    v8::Local<v8::Value> next;
-    if (!iterator->Get(context, next_key).ToLocal(&next)) {
-      exception_state.RethrowV8Exception(block.Exception());
-      return VectorType();
-    }
-    // TODO(bashi): Support callable objects.
-    if (!next->IsObject() || !next.As<v8::Object>()->IsFunction()) {
-      exception_state.ThrowTypeError("Iterator.next should be callable.");
-      return VectorType();
-    }
-    v8::Local<v8::Value> next_result;
-    if (!V8ScriptRunner::CallFunction(next.As<v8::Function>(),
-                                      ToExecutionContext(context), iterator, 0,
-                                      nullptr, isolate)
-             .ToLocal(&next_result)) {
-      exception_state.RethrowV8Exception(block.Exception());
-      return VectorType();
-    }
-    if (!next_result->IsObject()) {
-      exception_state.ThrowTypeError(
-          "Iterator.next() did not return an object.");
-      return VectorType();
-    }
-    v8::Local<v8::Object> result_object = next_result.As<v8::Object>();
-    v8::Local<v8::Value> element;
-    v8::Local<v8::Value> done;
-    if (!result_object->Get(context, value_key).ToLocal(&element) ||
-        !result_object->Get(context, done_key).ToLocal(&done)) {
-      exception_state.RethrowV8Exception(block.Exception());
-      return VectorType();
-    }
-    v8::Local<v8::Boolean> done_boolean;
-    if (!done->ToBoolean(context).ToLocal(&done_boolean)) {
-      exception_state.RethrowV8Exception(block.Exception());
-      return VectorType();
-    }
-    if (done_boolean->Value())
-      break;
-    result.push_back(NativeValueTraits<ValueType>::NativeValue(
-        isolate, element, exception_state));
-  }
-  return result;
-}
-
-// If the current context causes out of memory, JavaScript setting
-// is disabled and it returns true.
-bool HandleOutOfMemory();
-
 inline bool IsUndefinedOrNull(v8::Local<v8::Value> value) {
   return value.IsEmpty() || value->IsNull() || value->IsUndefined();
 }
@@ -1060,17 +379,6 @@ static void IndexedPropertyEnumerator(
   V8SetReturnValue(info, properties);
 }
 
-CORE_EXPORT bool IsValidEnum(const String& value,
-                             const char** valid_values,
-                             size_t length,
-                             const String& enum_name,
-                             ExceptionState&);
-CORE_EXPORT bool IsValidEnum(const Vector<String>& values,
-                             const char** valid_values,
-                             size_t length,
-                             const String& enum_name,
-                             ExceptionState&);
-
 // These methods store hidden values into an array that is stored in the
 // internal field of a DOM wrapper.
 bool AddHiddenValueToArray(v8::Isolate*,
@@ -1081,15 +389,6 @@ void RemoveHiddenValueFromArray(v8::Isolate*,
                                 v8::Local<v8::Object>,
                                 v8::Local<v8::Value>,
                                 int cache_index);
-CORE_EXPORT void MoveEventListenerToNewWrapper(v8::Isolate*,
-                                               v8::Local<v8::Object>,
-                                               EventListener* old_value,
-                                               v8::Local<v8::Value> new_value,
-                                               int cache_index);
-
-// Result values for platform object 'deleter' methods,
-// http://www.w3.org/TR/WebIDL/#delete
-enum DeleteResult { kDeleteSuccess, kDeleteReject, kDeleteUnknownProperty };
 
 // Freeze a V8 object. The type of the first parameter and the return value is
 // intentionally v8::Value so that this function can wrap ToV8().
@@ -1097,40 +396,6 @@ enum DeleteResult { kDeleteSuccess, kDeleteReject, kDeleteUnknownProperty };
 CORE_EXPORT v8::Local<v8::Value> FreezeV8Object(v8::Local<v8::Value>,
                                                 v8::Isolate*);
 
-CORE_EXPORT v8::Local<v8::Value> FromJSONString(v8::Isolate*,
-                                                const String& stringified_json,
-                                                ExceptionState&);
-
-// Ensure that a typed array value is not backed by a SharedArrayBuffer. If it
-// is, an exception will be thrown. The return value will use the NotShared
-// wrapper type.
-template <typename NotSharedType>
-NotSharedType ToNotShared(v8::Isolate* isolate,
-                          v8::Local<v8::Value> value,
-                          ExceptionState& exception_state) {
-  using DOMTypedArray = typename NotSharedType::TypedArrayType;
-  DOMTypedArray* dom_typed_array =
-      V8TypeOf<DOMTypedArray>::Type::toImplWithTypeCheck(isolate, value);
-  if (dom_typed_array && dom_typed_array->IsShared()) {
-    exception_state.ThrowTypeError(
-        "The provided ArrayBufferView value must not be shared.");
-    return NotSharedType();
-  }
-  return NotSharedType(dom_typed_array);
-}
-
-// Wrap a typed array value in MaybeShared<>, to signify that it may be backed
-// by a SharedArrayBuffer.
-template <typename MaybeSharedType>
-MaybeSharedType ToMaybeShared(v8::Isolate* isolate,
-                              v8::Local<v8::Value> value,
-                              ExceptionState& exception_state) {
-  using DOMTypedArray = typename MaybeSharedType::TypedArrayType;
-  DOMTypedArray* dom_typed_array =
-      V8TypeOf<DOMTypedArray>::Type::toImplWithTypeCheck(isolate, value);
-  return MaybeSharedType(dom_typed_array);
-}
-
 }  // namespace blink
 
 #endif  // V8Binding_h