Implement chrome.input.ime.setComposition/commitText API.

chrome/common/extensions/api/input_ime.json

 // 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.
 
 [
   {
     "namespace": "input.ime",
     "description": "Use the <code>chrome.input.ime</code> API to implement a custom IME for Chrome OS. This allows your extension to handle keystrokes, set the composition, and manage the candidate window.",
     "types": [
       {
@@ skipping 117 matching lines @@
           "url": {"type": "string", "optional": true},
           "bounds": {"$ref": "Bounds", "optional": true}
         }
       }
     ],
     "functions": [
       {
         "name": "setComposition",
         "type": "function",
         "description": "Set the current composition. If this extension does not own the active IME, this fails.",
-        "platforms": ["chromeos"],
+        "platforms": ["chromeos", "win", "linux"],
         "parameters": [
           {
             "name": "parameters",
             "type": "object",
             "properties": {
               "contextID": {
                 "description": "ID of the context where the composition text will be set",
                 "type": "integer"
               },
               "text": {
@@ skipping 79 matching lines @@
                 "type": "boolean"
               }
             ]
           }
         ]
       },
       {
         "name": "commitText",
         "type": "function",
         "description": "Commits the provided text to the current input.",
-        "platforms": ["chromeos"],
+        "platforms": ["chromeos", "win", "linux"],
         "parameters": [
           {
             "name": "parameters",
             "type": "object",
             "properties": {
               "contextID": {
                 "description": "ID of the context where the text will be committed",
                 "type": "integer"
               },
               "text": {
@@ skipping 592 matching lines @@
             "type": "array",
             "name": "boundsList",
             "description": "List of bounds information for each character on IME composition text. If there's no composition text in the editor, this array contains the bound information of the cursor.",
             "items": { "$ref": "Bounds" }
           }
         ]
       }
     ]
   }
 ]