Added network components for blimp text input feature

blimp/engine/feature/engine_render_widget_feature.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_ENGINE_FEATURE_ENGINE_RENDER_WIDGET_FEATURE_H_
 #define BLIMP_ENGINE_FEATURE_ENGINE_RENDER_WIDGET_FEATURE_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <vector>
 
 #include "base/atomic_sequence_num.h"
 #include "base/containers/small_map.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "blimp/net/blimp_message_processor.h"
 #include "blimp/net/input_message_converter.h"
+#include "ui/base/ime/text_input_client.h"
 
 namespace blink {
 class WebGestureEvent;
 }
 
 namespace content {
 class RenderWidgetHost;
 }
 
 namespace blimp {
@@ skipping 27 matching lines @@
 
   void set_render_widget_message_sender(
       scoped_ptr<BlimpMessageProcessor> message_processor);
 
   void set_input_message_sender(
       scoped_ptr<BlimpMessageProcessor> message_processor);
 
   void set_compositor_message_sender(
       scoped_ptr<BlimpMessageProcessor> message_processor);
 
+  void set_ime_message_sender(
+      scoped_ptr<BlimpMessageProcessor> message_processor);
+
   // Notifes the client that a new RenderWidget for a particular WebContents has
   // been created. This will trigger the creation of the BlimpCompositor for
   // this widget on the client.
   void OnRenderWidgetCreated(const int tab_id,
                              content::RenderWidgetHost* render_widget_host);
 
   // Notifies the client that the RenderWidget for a particular WebContents has
   // changed.  When this is sent the native view on the client becomes bound to
   // the BlimpCompositor for this widget.
   // Since the compositor on the client performs the operations of the view for
   // this widget, this will set the visibility and draw state correctly for this
   // widget.
   // Note: This assumes that this is the RenderWidgetHost for the main frame.
   // Only one RenderWidget can be in initialized state for a tab.
   void OnRenderWidgetInitialized(const int tab_id,
                                  content::RenderWidgetHost* render_widget_host);
 
   void OnRenderWidgetDeleted(const int tab_id,
                              content::RenderWidgetHost* render_widget_host);
 
+  // Sends an ImeMessage to show/hide IME.

[haibinlu, 2016/03/17 18:59:46]

Notifies the client to show/hide IME.

[shaktisahu, 2016/03/18 19:08:06]

Done.

[shaktisahu, 2016/03/18 19:08:06]

Done.

+  void SendShowImeRequest(const int tab_id,
+                          content::RenderWidgetHost* render_widget_host,
+                          const ui::TextInputClient* client);
+  void SendHideImeRequest(const int tab_id,
+                          content::RenderWidgetHost* render_widget_host,
+                          const ui::TextInputClient* client);

[David Trainor- moved to gerrit, 2016/03/17 21:53:29]

Do we need the client for hide?

+
   // Sends a CompositorMessage for |tab_id| to the client.
   void SendCompositorMessage(const int tab_id,
                              content::RenderWidgetHost* render_widget_host,
                              const std::vector<uint8_t>& message);
 
   // Sets a RenderWidgetMessageDelegate to be notified of all incoming
   // RenderWidget related messages for |tab_id| from the client.  There can only
   // be one RenderWidgetMessageDelegate per tab.
   void SetDelegate(const int tab_id, RenderWidgetMessageDelegate* delegate);
   void RemoveDelegate(const int tab_id);
@@ skipping 31 matching lines @@
   // Returns the render_widget_id for the RenderWidgetHost. Will return 0U if
   // the host is not found.
   int GetRenderWidgetId(const int tab_id,
                         content::RenderWidgetHost* render_widget_host);
 
   // Returns the RenderWidgetHost for the given render_widget_id. Will return
   // nullptr if no host is found.
   content::RenderWidgetHost* GetRenderWidgetHost(const int tab_id,
                                                  const int render_widget_id);
 
+  void InsertTextFromIME(ui::TextInputClient* client, std::string text);

[haibinlu, 2016/03/17 18:59:46]

add method document

[shaktisahu, 2016/03/18 19:08:06]

Done.

[shaktisahu, 2016/03/18 19:08:06]

Done.

+
   DelegateMap delegates_;
   TabMap tabs_;
 
   // A RenderWidgetHost can also be uniquely identified by the
   // <process_id, routing_id> where the process_id is the id for the
   // RenderProcessHost for this widget and the routing_id is the id for the
   // widget.
   // But we generate our own ids to avoid having the render widget protocol tied
   // to always using a combination of these ids, generated by the content layer.
   // By using an AtomicSequenceNumber for identifying render widgets across
   // tabs, we can be sure that there will always be a 1:1 mapping between the
   // render widget and the consumer of the features tied to this widget on the
   // client, which is the BlimpCompositor.
   base::AtomicSequenceNumber next_widget_id_;
 
   InputMessageConverter input_message_converter_;
 
   // Outgoing message processors for RENDER_WIDGET, COMPOSITOR and INPUT types.
   scoped_ptr<BlimpMessageProcessor> render_widget_message_sender_;
   scoped_ptr<BlimpMessageProcessor> compositor_message_sender_;
   scoped_ptr<BlimpMessageProcessor> input_message_sender_;
+  scoped_ptr<BlimpMessageProcessor> ime_message_sender_;
 
   DISALLOW_COPY_AND_ASSIGN(EngineRenderWidgetFeature);
 };
 
 }  // namespace blimp
 
 #endif  // BLIMP_ENGINE_FEATURE_ENGINE_RENDER_WIDGET_FEATURE_H_