Move extensions bindings code out of //chrome

chrome/renderer/extensions/utils_native_handler.cc

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/renderer/extensions/utils_native_handler.h"
-
-#include "base/strings/stringprintf.h"
-#include "chrome/renderer/extensions/chrome_v8_context.h"
-#include "third_party/WebKit/public/web/WebScopedMicrotaskSuppression.h"
-
-namespace extensions {
-
-UtilsNativeHandler::UtilsNativeHandler(ChromeV8Context* context)
-    : ObjectBackedNativeHandler(context) {
-  RouteFunction("createClassWrapper",
-      base::Bind(&UtilsNativeHandler::CreateClassWrapper,
-                 base::Unretained(this)));
-}
-
-UtilsNativeHandler::~UtilsNativeHandler() {}
-
-void UtilsNativeHandler::CreateClassWrapper(
-    const v8::FunctionCallbackInfo<v8::Value>& args) {
-  CHECK_EQ(2, args.Length());
-  CHECK(args[0]->IsString());
-  std::string name = *v8::String::Utf8Value(args[0]);
-  CHECK(args[1]->IsObject());
-  v8::Local<v8::Object> obj = args[1].As<v8::Object>();
-
-  v8::HandleScope handle_scope(GetIsolate());
-  // TODO(fsamuel): Consider moving the source wrapping to ModuleSystem.
-  v8::Handle<v8::String> source = v8::String::NewFromUtf8(
-      GetIsolate(),
-      base::StringPrintf(
-          "(function($Object, $Function, privates, cls) {"
-          "'use strict';\n"
-          "  return function %s() {\n"
-          "  var privateObj = $Object.create(cls.prototype);\n"
-          "  $Function.apply(cls, privateObj, arguments);\n"
-          "  privateObj.wrapper = this;\n"
-          "  privates(this).impl = privateObj;\n"
-          "}})", name.c_str()).c_str());
-  v8::Handle<v8::Value> func_as_value =
-      context()->module_system()->RunString(source,
-          v8::String::NewFromUtf8(GetIsolate(), name.c_str()));
-  if (func_as_value.IsEmpty() || func_as_value->IsUndefined()) {
-    args.GetReturnValue().SetUndefined();
-    return;
-  }
-
-  // TODO(fsamuel): Move privates from ModuleSystem to a shared location.
-  v8::Handle<v8::Object> natives(context()->module_system()->NewInstance());
-  CHECK(!natives.IsEmpty());  // this can happen if v8 has issues
-  v8::Handle<v8::Function> func = func_as_value.As<v8::Function>();
-  v8::Handle<v8::Value> func_args[] = {
-      context()->safe_builtins()->GetObjekt(),
-      context()->safe_builtins()->GetFunction(),
-      natives->Get(v8::String::NewFromUtf8(
-          GetIsolate(), "privates", v8::String::kInternalizedString)),
-      obj
-  };
-  v8::Local<v8::Value> result;
-  {
-    v8::TryCatch try_catch;
-    try_catch.SetCaptureMessage(true);
-    result = context()->CallFunction(func, arraysize(func_args), func_args);
-    if (try_catch.HasCaught()) {
-      args.GetReturnValue().SetUndefined();
-      return;
-    }
-  }
-  args.GetReturnValue().Set(result);
-}
-
-}  // namespace extensions