Use V8 Maybe APIs in extensions/renderer

extensions/renderer/activity_log_converter_strategy.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/activity_log_converter_strategy.h"
 
 #include "base/logging.h"
 #include "base/values.h"
+#include "extensions/renderer/v8_maybe_helpers.h"
 #include "v8/include/v8.h"
 
 namespace extensions {
 
 namespace {
 
 // Summarize a V8 value. This performs a shallow conversion in all cases, and
 // returns only a string with a description of the value (e.g.,
 // "[HTMLElement]").
 scoped_ptr<base::Value> SummarizeV8Value(v8::Isolate* isolate,
                                          v8::Local<v8::Object> object) {
-  v8::TryCatch try_catch;
+  v8::TryCatch try_catch(isolate);
   v8::Isolate::DisallowJavascriptExecutionScope scope(
       isolate, v8::Isolate::DisallowJavascriptExecutionScope::THROW_ON_FAILURE);
-  v8::Local<v8::String> name = v8::String::NewFromUtf8(isolate, "[");
+  v8::Local<v8::String> name = ToV8String(isolate, "[");
   if (object->IsFunction()) {
     name =
-        v8::String::Concat(name, v8::String::NewFromUtf8(isolate, "Function"));
+        v8::String::Concat(name, ToV8String(isolate, "Function"));
     v8::Local<v8::Value> fname =
         v8::Local<v8::Function>::Cast(object)->GetName();
     if (fname->IsString() && v8::Local<v8::String>::Cast(fname)->Length()) {
-      name = v8::String::Concat(name, v8::String::NewFromUtf8(isolate, " "));
+      name = v8::String::Concat(name, ToV8String(isolate, " "));
       name = v8::String::Concat(name, v8::Local<v8::String>::Cast(fname));
-      name = v8::String::Concat(name, v8::String::NewFromUtf8(isolate, "()"));
+      name = v8::String::Concat(name, ToV8String(isolate, "()"));
     }
   } else {
     name = v8::String::Concat(name, object->GetConstructorName());
   }
-  name = v8::String::Concat(name, v8::String::NewFromUtf8(isolate, "]"));
+  name = v8::String::Concat(name, ToV8String(isolate, "]"));
 
   if (try_catch.HasCaught()) {
     return scoped_ptr<base::Value>(
         new base::StringValue("[JS Execution Exception]"));
   }
 
   return scoped_ptr<base::Value>(
       new base::StringValue(std::string(*v8::String::Utf8Value(name))));
 }
 
@@ skipping 25 matching lines @@
     v8::Isolate* isolate,
     const FromV8ValueCallback& callback) const {
   scoped_ptr<base::Value> parsed_value;
   parsed_value = SummarizeV8Value(isolate, value);
   *out = parsed_value.release();
 
   return true;
 }
 
 }  // namespace extensions