add isolate parameter to ThrowException

src/extensions/externalize-string-extension.cc

Index: src/extensions/externalize-string-extension.cc
diff --git a/src/extensions/externalize-string-extension.cc b/src/extensions/externalize-string-extension.cc
index 5fd821b9c07385b53714b200f48a90a2126da75f..01397cd4f498bc8a80ead3680e0b91c2c9f41c5c 100644
--- a/src/extensions/externalize-string-extension.cc
+++ b/src/extensions/externalize-string-extension.cc
@@ -75,8 +75,10 @@ v8::Handle<v8::FunctionTemplate> ExternalizeStringExtension::GetNativeFunction(
 void ExternalizeStringExtension::Externalize(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   if (args.Length() < 1 || !args[0]->IsString()) {
-    v8::ThrowException(v8::String::New(
-        "First parameter to externalizeString() must be a string."));
+    v8::ThrowException(
+        args.GetIsolate(),
+        v8::String::New(
+            "First parameter to externalizeString() must be a string."));
     return;
   }
   bool force_two_byte = false;
@@ -84,16 +86,20 @@ void ExternalizeStringExtension::Externalize(
     if (args[1]->IsBoolean()) {
       force_two_byte = args[1]->BooleanValue();
     } else {
-      v8::ThrowException(v8::String::New(
-        "Second parameter to externalizeString() must be a boolean."));
+      v8::ThrowException(
+          args.GetIsolate(),
+          v8::String::New(
+              "Second parameter to externalizeString() must be a boolean."));
       return;
     }
   }
   bool result = false;
   Handle<String> string = Utils::OpenHandle(*args[0].As<v8::String>());
   if (string->IsExternalString()) {
-    v8::ThrowException(v8::String::New(
-        "externalizeString() can't externalize twice."));
+    v8::ThrowException(
+        args.GetIsolate(),
+        v8::String::New(
+            "externalizeString() can't externalize twice."));
     return;
   }
   if (string->IsOneByteRepresentation() && !force_two_byte) {
@@ -129,8 +135,10 @@ void ExternalizeStringExtension::Externalize(
 void ExternalizeStringExtension::IsAscii(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   if (args.Length() != 1 || !args[0]->IsString()) {
-    v8::ThrowException(v8::String::New(
-        "isAsciiString() requires a single string argument."));
+    v8::ThrowException(
+        args.GetIsolate(),
+        v8::String::New(
+            "isAsciiString() requires a single string argument."));
     return;
   }
   bool is_one_byte =