renderer: Use v8::Array::Cast to cast the return value of Arguments.

chrome/renderer/searchbox_extension.cc

 // Copyright (c) 2011 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/searchbox_extension.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 275 matching lines @@
 // }
 // static
 v8::Handle<v8::Value> SearchBoxExtensionWrapper::SetSuggestions(
     const v8::Arguments& args) {
   std::vector<std::string> suggestions;
   InstantCompleteBehavior behavior = INSTANT_COMPLETE_NOW;
 
   if (args.Length() && args[0]->IsArray()) {
     // For backwards compatibility, also accept an array of strings.
     // TODO(tonyg): Remove this when it is confirmed to be unused.
-    v8::Array* suggestions_array = static_cast<v8::Array*>(*args[0]);
+    v8::Array* suggestions_array = v8::Array::Cast(*args[0]);
     uint32_t length = suggestions_array->Length();
     for (uint32_t i = 0; i < length; i++) {
       std::string suggestion = *v8::String::Utf8Value(
           suggestions_array->Get(v8::Integer::New(i))->ToString());
       if (!suggestion.length()) continue;
       suggestions.push_back(suggestion);
     }
   } else if (args.Length() && args[0]->IsObject()) {
     // Standard version, object argument.
     v8::Object* suggestion_json = static_cast<v8::Object*>(*args[0]);
@@ skipping 119 matching lines @@
 
   return supports_searchbox_api || supports_deprecated_api;
 }
 
 // static
 v8::Extension* SearchBoxExtension::Get() {
   return new SearchBoxExtensionWrapper();
 }
 
 }  // namespace extensions_v8