bindings: Add C++ versions of WebIDL types and generalize NativeValueTraits.

third_party/WebKit/Source/bindings/tests/results/modules/V8TestInterface5.cpp

Index: third_party/WebKit/Source/bindings/tests/results/modules/V8TestInterface5.cpp
diff --git a/third_party/WebKit/Source/bindings/tests/results/modules/V8TestInterface5.cpp b/third_party/WebKit/Source/bindings/tests/results/modules/V8TestInterface5.cpp
index 9c6ea666f5bb50de9c900dd5d5421ae0fa16fbd9..9c15a99451f72b7cbe21af74a4fd423df4af35b6 100644
--- a/third_party/WebKit/Source/bindings/tests/results/modules/V8TestInterface5.cpp
+++ b/third_party/WebKit/Source/bindings/tests/results/modules/V8TestInterface5.cpp
@@ -12,6 +12,8 @@
 #include "V8TestInterface5.h"
 
 #include "bindings/core/v8/ExceptionState.h"
+#include "bindings/core/v8/IDLTypes.h"
+#include "bindings/core/v8/NativeValueTraitsImpl.h"
 #include "bindings/core/v8/V8DOMConfiguration.h"
 #include "bindings/core/v8/V8ObjectConstructor.h"
 #include "bindings/core/v8/V8TestInterfaceEmpty.h"
@@ -98,7 +100,7 @@ static void doubleAttributeAttributeSetter(v8::Local<v8::Value> v8Value, const v
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface5", "doubleAttribute");
 
   // Prepare the value to be set.
-  double cppValue = toRestrictedDouble(info.GetIsolate(), v8Value, exceptionState);
+  double cppValue = NativeValueTraits<IDLDouble>::nativeValue(info.GetIsolate(), v8Value, exceptionState);
   if (exceptionState.hadException())
     return;
 
@@ -120,7 +122,7 @@ static void floatAttributeAttributeSetter(v8::Local<v8::Value> v8Value, const v8
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface5", "floatAttribute");
 
   // Prepare the value to be set.
-  float cppValue = toRestrictedFloat(info.GetIsolate(), v8Value, exceptionState);
+  float cppValue = NativeValueTraits<IDLFloat>::nativeValue(info.GetIsolate(), v8Value, exceptionState);
   if (exceptionState.hadException())
     return;
 
@@ -142,7 +144,7 @@ static void unrestrictedDoubleAttributeAttributeSetter(v8::Local<v8::Value> v8Va
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface5", "unrestrictedDoubleAttribute");
 
   // Prepare the value to be set.
-  double cppValue = toDouble(info.GetIsolate(), v8Value, exceptionState);
+  double cppValue = NativeValueTraits<IDLUnrestrictedDouble>::nativeValue(info.GetIsolate(), v8Value, exceptionState);
   if (exceptionState.hadException())
     return;
 
@@ -164,7 +166,7 @@ static void unrestrictedFloatAttributeAttributeSetter(v8::Local<v8::Value> v8Val
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface5", "unrestrictedFloatAttribute");
 
   // Prepare the value to be set.
-  float cppValue = toFloat(info.GetIsolate(), v8Value, exceptionState);
+  float cppValue = NativeValueTraits<IDLUnrestrictedFloat>::nativeValue(info.GetIsolate(), v8Value, exceptionState);
   if (exceptionState.hadException())
     return;
 
@@ -207,7 +209,7 @@ static void alwaysExposedAttributeAttributeSetter(v8::Local<v8::Value> v8Value,
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface5", "alwaysExposedAttribute");
 
   // Prepare the value to be set.
-  int32_t cppValue = toInt32(info.GetIsolate(), v8Value, NormalConversion, exceptionState);
+  int32_t cppValue = NativeValueTraits<IDLLong>::nativeValue(info.GetIsolate(), v8Value, exceptionState, NormalConversion);
   if (exceptionState.hadException())
     return;
 
@@ -229,7 +231,7 @@ static void workerExposedAttributeAttributeSetter(v8::Local<v8::Value> v8Value,
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface5", "workerExposedAttribute");
 
   // Prepare the value to be set.
-  int32_t cppValue = toInt32(info.GetIsolate(), v8Value, NormalConversion, exceptionState);
+  int32_t cppValue = NativeValueTraits<IDLLong>::nativeValue(info.GetIsolate(), v8Value, exceptionState, NormalConversion);
   if (exceptionState.hadException())
     return;
 
@@ -251,7 +253,7 @@ static void windowExposedAttributeAttributeSetter(v8::Local<v8::Value> v8Value,
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface5", "windowExposedAttribute");
 
   // Prepare the value to be set.
-  int32_t cppValue = toInt32(info.GetIsolate(), v8Value, NormalConversion, exceptionState);
+  int32_t cppValue = NativeValueTraits<IDLLong>::nativeValue(info.GetIsolate(), v8Value, exceptionState, NormalConversion);
   if (exceptionState.hadException())
     return;
 
@@ -289,11 +291,11 @@ static void voidMethodDoubleArgFloatArgMethod(const v8::FunctionCallbackInfo<v8:
 
   double doubleArg;
   float floatArg;
-  doubleArg = toRestrictedDouble(info.GetIsolate(), info[0], exceptionState);
+  doubleArg = NativeValueTraits<IDLDouble>::nativeValue(info.GetIsolate(), info[0], exceptionState);
   if (exceptionState.hadException())
     return;
 
-  floatArg = toRestrictedFloat(info.GetIsolate(), info[1], exceptionState);
+  floatArg = NativeValueTraits<IDLFloat>::nativeValue(info.GetIsolate(), info[1], exceptionState);
   if (exceptionState.hadException())
     return;
 
@@ -312,11 +314,11 @@ static void voidMethodUnrestrictedDoubleArgUnrestrictedFloatArgMethod(const v8::
 
   double unrestrictedDoubleArg;
   float unrestrictedFloatArg;
-  unrestrictedDoubleArg = toDouble(info.GetIsolate(), info[0], exceptionState);
+  unrestrictedDoubleArg = NativeValueTraits<IDLUnrestrictedDouble>::nativeValue(info.GetIsolate(), info[0], exceptionState);
   if (exceptionState.hadException())
     return;
 
-  unrestrictedFloatArg = toFloat(info.GetIsolate(), info[1], exceptionState);
+  unrestrictedFloatArg = NativeValueTraits<IDLUnrestrictedFloat>::nativeValue(info.GetIsolate(), info[1], exceptionState);
   if (exceptionState.hadException())
     return;
 
@@ -849,6 +851,10 @@ TestInterface5Implementation* V8TestInterface5::toImplWithTypeCheck(v8::Isolate*
   return hasInstance(value, isolate) ? toImpl(v8::Local<v8::Object>::Cast(value)) : nullptr;
 }
 
+TestInterface5Implementation* NativeValueTraits<TestInterface5Implementation>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState) {
+  return V8TestInterface5::toImplWithTypeCheck(isolate, value);
+}
+
 void V8TestInterface5::preparePrototypeAndInterfaceObject(v8::Local<v8::Context> context, const DOMWrapperWorld& world, v8::Local<v8::Object> prototypeObject, v8::Local<v8::Function> interfaceObject, v8::Local<v8::FunctionTemplate> interfaceTemplate) {
   v8::Isolate* isolate = context->GetIsolate();
   v8::Local<v8::Signature> signature = v8::Signature::New(isolate, interfaceTemplate);