Added network components for blimp text input feature

blimp/common/create_blimp_message.cc

Index: blimp/common/create_blimp_message.cc
diff --git a/blimp/common/create_blimp_message.cc b/blimp/common/create_blimp_message.cc
index 09e6dea0cb7fa70a0fe3aa0c2f7efebbce913f02..ddb28dc9592fefed54815e8e330584a3a965957b 100644
--- a/blimp/common/create_blimp_message.cc
+++ b/blimp/common/create_blimp_message.cc
@@ -53,6 +53,16 @@ scoped_ptr<BlimpMessage> CreateBlimpMessage(
   return output;
 }
 
+scoped_ptr<BlimpMessage> CreateBlimpMessage(ImeMessage** ime_message,
+                                            int target_tab_id) {
+  DCHECK(ime_message);
+  scoped_ptr<BlimpMessage> output(new BlimpMessage);
+  output->set_type(BlimpMessage::IME);
+  output->set_target_tab_id(target_tab_id);
+  *ime_message = output->mutable_ime();
+  return output;
+}
+
 scoped_ptr<BlimpMessage> CreateBlimpMessage(
     RenderWidgetMessage** render_widget_message,
     int target_tab_id) {