extensions/renderer: Use v8::Local instead of v8::Handle.

extensions/renderer/logging_native_handler.h

Index: extensions/renderer/logging_native_handler.h
diff --git a/extensions/renderer/logging_native_handler.h b/extensions/renderer/logging_native_handler.h
index 7ae7ef5190947d0f3622b3bc95836fed0f363c87..e9f4f20e66d1640d9e2675fb3bf69353d8084693 100644
--- a/extensions/renderer/logging_native_handler.h
+++ b/extensions/renderer/logging_native_handler.h
@@ -47,7 +47,7 @@ class LoggingNativeHandler : public ObjectBackedNativeHandler {
                  bool* check_value,
                  std::string* error_message);
 
-  std::string ToStringOrDefault(const v8::Handle<v8::String>& v8_string,
+  std::string ToStringOrDefault(const v8::Local<v8::String>& v8_string,
                                 const std::string& dflt);
 };