Added network components for blimp text input feature

blimp/net/input_message_converter.h

 // Copyright 2015 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.
 
 #ifndef BLIMP_NET_INPUT_MESSAGE_CONVERTER_H_

[haibinlu, 2016/03/22 19:58:15]

this class, together with net/input_message_generator.h, shall be moved to
blimp/common. not sure why they were put under "net" originally. you can do it a
different cl. 

 #define BLIMP_NET_INPUT_MESSAGE_CONVERTER_H_
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
+#include "blimp/common/proto/ime.pb.h"
 #include "blimp/net/blimp_net_export.h"
+#include "ui/base/ime/text_input_type.h"
 
 namespace blink {
 class WebGestureEvent;
 }
 
 namespace blimp {
 
 class InputMessage;
 
-// Handles creating WebGestureEvents from a stream of InputMessage protos.  This
-// class may be stateful to optimize the size of the serialized transmission
-// data.  See InputMessageConverter for the deserialize code.
+// A generic class to provide conversion utilities for protos such as :
+// 1) Creating WebGestureEvents from a stream of InputMessage protos.
+//    This class may be stateful to optimize the size of the serialized
+//    transmission
+//    data. See InputMessageConverter for the deserialize code.
+// 2) Conversion between ui::TextInputType and ImeMessage proto.
 class BLIMP_NET_EXPORT InputMessageConverter {
  public:
   InputMessageConverter();
   ~InputMessageConverter();
 
   // Process an InputMessage and create a WebGestureEvent from it.  This might
   // make use of state from previous messages.
   scoped_ptr<blink::WebGestureEvent> ProcessMessage(
       const InputMessage& message);
 
+  // Converts a ui::TextInputType to ImeMessage proto.
+  static ImeMessage_InputType TextInputTypeToProto(ui::TextInputType type);
+  static ui::TextInputType TextInputTypeFromProto(ImeMessage_InputType type);
+
  private:
   DISALLOW_COPY_AND_ASSIGN(InputMessageConverter);
 };
 
 }  // namespace blimp
 
 #endif  // BLIMP_NET_INPUT_MESSAGE_CONVERTER_H_