Implement Input Method related WebPlugin interface for browser plugin

content/common/browser_plugin/browser_plugin_messages.h

 // Copyright (c) 2012 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.
 
 // Multiply-included message header, no traditional include guard.
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/shared_memory.h"
 #include "base/process/process.h"
 #include "base/values.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/compositor_frame_ack.h"
 #include "content/common/content_export.h"
 #include "content/common/content_param_traits.h"
 #include "content/common/edit_command.h"
 #include "content/public/common/browser_plugin_permission_type.h"
 #include "content/public/common/common_param_traits.h"
 #include "content/public/common/drop_data.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_message_utils.h"
+#include "third_party/WebKit/public/web/WebCompositionUnderline.h"
 #include "third_party/WebKit/public/web/WebDragOperation.h"
 #include "third_party/WebKit/public/web/WebDragStatus.h"
 #include "ui/gfx/point.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
 #include "url/gurl.h"
 #include "webkit/common/cursors/webcursor.h"
 
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
@@ skipping 113 matching lines @@
 // edit command.
 IPC_MESSAGE_ROUTED2(BrowserPluginHostMsg_ExecuteEditCommand,
                      int /* instance_id */,
                      std::string /* command */)
 
 // This message must be sent just before sending a key event.
 IPC_MESSAGE_ROUTED2(BrowserPluginHostMsg_SetEditCommandsForNextKeyEvent,
                     int /* instance_id */,
                     std::vector<content::EditCommand> /* edit_commands */)
 
+// This message is sent from BrowserPlugin to BrowserPluginGuest whenever IME
+// composition state is updated.
+IPC_MESSAGE_ROUTED5(
+    BrowserPluginHostMsg_ImeSetComposition,
+    int /* instance_id */,
+    std::string /* text */,
+    std::vector<blink::WebCompositionUnderline> /* underlines */,
+    int /* selectiont_start */,
+    int /* selection_end */)
+
+// This message is sent from BrowserPlugin to BrowserPluginGuest to notify that
+// confirming the current composition is requested.
+IPC_MESSAGE_ROUTED3(
+    BrowserPluginHostMsg_ImeConfirmComposition,
+    int /* instance_id */,
+    std::string /* text */,
+    bool /* keep selection */)
+
 // This message is sent to the browser process to enable or disable autosize
 // mode.
 IPC_MESSAGE_ROUTED3(
     BrowserPluginHostMsg_SetAutoSize,
     int /* instance_id */,
     BrowserPluginHostMsg_AutoSize_Params /* auto_size_params */,
     BrowserPluginHostMsg_ResizeGuest_Params /* resize_guest_params */)
 
 // This message is sent to the browser process to indicate that a BrowserPlugin
 // has taken ownership of the lifetime of the guest of the given |instance_id|.
@@ skipping 196 matching lines @@
                      int /* instance_id */,
                      cc::CompositorFrame /* frame */,
                      int /* route_id */,
                      uint32 /* output_surface_id */,
                      int /* renderer_host_id */)
 
 // Forwards a PointerLock Unlock request to the BrowserPlugin.
 IPC_MESSAGE_CONTROL2(BrowserPluginMsg_SetMouseLock,
                      int /* instance_id */,
                      bool /* enable */)
-