remove some calls to to-be-deprecated v8::Value::To* functions

components/translate/content/renderer/translate_helper.cc

 // Copyright (c) 2012 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 "components/translate/content/renderer/translate_helper.h"
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 292 matching lines @@
   v8::HandleScope handle_scope(v8::Isolate::GetCurrent());
   WebVector<v8::Local<v8::Value> > results;
   WebScriptSource source = WebScriptSource(ASCIIToUTF16(script));
   main_frame->executeScriptInIsolatedWorld(
       world_id_, &source, 1, extension_group_, &results);
   if (results.size() != 1 || results[0].IsEmpty() || !results[0]->IsString()) {
     NOTREACHED();
     return std::string();
   }
 
-  v8::Local<v8::String> v8_str = results[0]->ToString();
+  v8::Local<v8::String> v8_str = results[0].As<v8::String>();
   int length = v8_str->Utf8Length() + 1;
   scoped_ptr<char[]> str(new char[length]);
   v8_str->WriteUtf8(str.get(), length);
   return std::string(str.get());
 }
 
 double TranslateHelper::ExecuteScriptAndGetDoubleResult(
     const std::string& script) {
   WebFrame* main_frame = GetMainFrame();
   if (!main_frame)
@@ skipping 323 matching lines @@
   // this, everything should start being ON_TIME. This should never run more
   // than twice in a page load, under any conditions.
   // Also note that language detection is triggered off of a delay AFTER the
   // page load completed event has fired, making this very much off the critical
   // path.
   content::RenderThread::Get()->UpdateHistograms(
       content::kHistogramSynchronizerReservedSequenceNumber);
 }
 
 }  // namespace translate