enterprise.platformKeys: Copy-on-read the 'algorithm' member of Key objects.

extensions/renderer/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 "extensions/renderer/utils_native_handler.h"
 
 #include "base/strings/stringprintf.h"
 #include "extensions/renderer/script_context.h"
 #include "third_party/WebKit/public/web/WebScopedMicrotaskSuppression.h"
+#include "third_party/WebKit/public/web/WebSerializedScriptValue.h"
 
 namespace extensions {
 
 UtilsNativeHandler::UtilsNativeHandler(ScriptContext* context)
     : ObjectBackedNativeHandler(context) {
   RouteFunction("createClassWrapper",
                 base::Bind(&UtilsNativeHandler::CreateClassWrapper,
                            base::Unretained(this)));
+  RouteFunction(
+      "deepCopy",
+      base::Bind(&UtilsNativeHandler::DeepCopy, base::Unretained(this)));
 }
 
 UtilsNativeHandler::~UtilsNativeHandler() {}
 
 void UtilsNativeHandler::CreateClassWrapper(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   CHECK_EQ(3, args.Length());
   CHECK(args[0]->IsString());
   std::string name = *v8::String::Utf8Value(args[0]);
   CHECK(args[1]->IsObject());
@@ skipping 46 matching lines @@
     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);
 }
 
+void UtilsNativeHandler::DeepCopy(
+    const v8::FunctionCallbackInfo<v8::Value>& args) {
+  CHECK_EQ(1, args.Length());
+  args.GetReturnValue().Set(
+      blink::WebSerializedScriptValue::serialize(args[0]).deserialize());
+}
+
 }  // namespace extensions