Switch from text insertion to key press and release events on the virtual k…

chrome/common/extensions/api/experimental_input_virtual_keyboard.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": "experimental.input.virtualKeyboard",
     "description": "none",
     "functions": [
       {
         "name": "insertText",
         "type": "function",
         "description": "Inserts text into the currently focused text field.",
         "parameters": [
           { "name": "text",
             "type": "string",
             "description": "The text that will be inserted."
           },
           { "type": "function",
             "name": "callback",
             "optional": true,
             "description": "Called when the insertion is completed.",
             "parameters": []
           }
         ]
+      },
+      {
+        "name": "dispatchKeyEvent",
+        "type": "function",
+        "description": "Dispatches a fabricated key event to the focused input field.",
+        "parameters": [
+          { "name": "type",

[bshe, 2013/07/25 15:33:05]

probably add a enum field here like this
(https://code.google.com/p/chromium/codesearch/#chromium/src/chrome/common/ext...
It could give us a js console error when type is not "keyPressed" or
"keyReleased".

But you have error detection in keyboard_util for extension and webui parameter.
So this is not necessary, just thought it might be slightly clearer to have a js
console error.

[kevers, 2013/07/26 00:53:30]

Added enum.

+            "type": "string",
+            "description": "Type type of key event: keyPressed or keyReleased."
+          },
+          { "name": "charCode",
+            "type": "integer",
+            "description": "Unicode value of the character."         
+          },
+          { "name": "callback",
+            "type": "function",
+            "optional": true,
+            "description": "Called post event dispatch.",
+            "parameters": []
+          }
+        ]
       }
     ]
   }
 ]