Use nullptr_t for RefPtr, PassRefPtr and RawPtr.

Source/bindings/v8/custom/V8DeviceMotionEventCustom.cpp

Index: Source/bindings/v8/custom/V8DeviceMotionEventCustom.cpp
diff --git a/Source/bindings/v8/custom/V8DeviceMotionEventCustom.cpp b/Source/bindings/v8/custom/V8DeviceMotionEventCustom.cpp
index e4a011c1b9fd9084baf86475532926a6b901b8a7..611a9ed82931b3bd35416661e93670d0ab697053 100644
--- a/Source/bindings/v8/custom/V8DeviceMotionEventCustom.cpp
+++ b/Source/bindings/v8/custom/V8DeviceMotionEventCustom.cpp
@@ -37,31 +37,31 @@ namespace {
 PassRefPtrWillBeRawPtr<DeviceMotionData::Acceleration> readAccelerationArgument(v8::Local<v8::Value> value, v8::Isolate* isolate)
 {
     if (isUndefinedOrNull(value))
-        return 0;
+        return nullptr;
 
     // Given the test above, this will always yield an object.
     v8::Local<v8::Object> object = value->ToObject();
 
     v8::Local<v8::Value> xValue = object->Get(v8AtomicString(isolate, "x"));
     if (xValue.IsEmpty())
-        return 0;
+        return nullptr;
     bool canProvideX = !isUndefinedOrNull(xValue);
     double x = xValue->NumberValue();
 
     v8::Local<v8::Value> yValue = object->Get(v8AtomicString(isolate, "y"));
     if (yValue.IsEmpty())
-        return 0;
+        return nullptr;
     bool canProvideY = !isUndefinedOrNull(yValue);
     double y = yValue->NumberValue();
 
     v8::Local<v8::Value> zValue = object->Get(v8AtomicString(isolate, "z"));
     if (zValue.IsEmpty())
-        return 0;
+        return nullptr;
     bool canProvideZ = !isUndefinedOrNull(zValue);
     double z = zValue->NumberValue();
 
     if (!canProvideX && !canProvideY && !canProvideZ)
-        return 0;
+        return nullptr;
 
     return DeviceMotionData::Acceleration::create(canProvideX, x, canProvideY, y, canProvideZ, z);
 }
@@ -69,31 +69,31 @@ PassRefPtrWillBeRawPtr<DeviceMotionData::Acceleration> readAccelerationArgument(
 PassRefPtrWillBeRawPtr<DeviceMotionData::RotationRate> readRotationRateArgument(v8::Local<v8::Value> value, v8::Isolate* isolate)
 {
     if (isUndefinedOrNull(value))
-        return 0;
+        return nullptr;
 
     // Given the test above, this will always yield an object.
     v8::Local<v8::Object> object = value->ToObject();
 
     v8::Local<v8::Value> alphaValue = object->Get(v8AtomicString(isolate, "alpha"));
     if (alphaValue.IsEmpty())
-        return 0;
+        return nullptr;
     bool canProvideAlpha = !isUndefinedOrNull(alphaValue);
     double alpha = alphaValue->NumberValue();
 
     v8::Local<v8::Value> betaValue = object->Get(v8AtomicString(isolate, "beta"));
     if (betaValue.IsEmpty())
-        return 0;
+        return nullptr;
     bool canProvideBeta = !isUndefinedOrNull(betaValue);
     double beta = betaValue->NumberValue();
 
     v8::Local<v8::Value> gammaValue = object->Get(v8AtomicString(isolate, "gamma"));
     if (gammaValue.IsEmpty())
-        return 0;
+        return nullptr;
     bool canProvideGamma = !isUndefinedOrNull(gammaValue);
     double gamma = gammaValue->NumberValue();
 
     if (!canProvideAlpha && !canProvideBeta && !canProvideGamma)
-        return 0;
+        return nullptr;
 
     return DeviceMotionData::RotationRate::create(canProvideAlpha, alpha, canProvideBeta, beta, canProvideGamma, gamma);
 }