Add experimental Support for DOM3 KeyboardEvent key value

Source/devtools/front_end/screencast/ScreencastView.js

Index: Source/devtools/front_end/screencast/ScreencastView.js
diff --git a/Source/devtools/front_end/screencast/ScreencastView.js b/Source/devtools/front_end/screencast/ScreencastView.js
index b39247fd853d5a35d95ff76be25e4abbcc96d3bb..e171099d4e3b04f7f91fbaab53cffaf2b9964916 100644
--- a/Source/devtools/front_end/screencast/ScreencastView.js
+++ b/Source/devtools/front_end/screencast/ScreencastView.js
@@ -280,7 +280,7 @@ WebInspector.ScreencastView.prototype = {
 
         var text = event.type === "keypress" ? String.fromCharCode(event.charCode) : undefined;
         this._target.inputAgent().dispatchKeyEvent(type, this._modifiersForEvent(event), event.timeStamp / 1000, text, text ? text.toLowerCase() : undefined,

[dgozman, 2015/02/18 14:27:48]

While you are here, please change this code to:

this._target.inputAgent().invoke_dispatchKeyEvent({
    type: ...,
    modifiers: ...,
    timestamp: ...,
    text: ...,
    unmodifiedText: ...,
    keyIdentifier: ...,
    code: ...,
    key: ...,
    windowsVirtualKeyCode: ...,
    nativeVirtualKeyCode: ...,
    autoRepeat: ...,
    isKeypad: ...,
    isSystemKey: ...});

[Habib Virji, 2015/02/18 15:33:46]

Done.

-                                    event.keyIdentifier, event.code, event.keyCode /* windowsVirtualKeyCode */, event.keyCode /* nativeVirtualKeyCode */, false, false, false);
+                                    event.keyIdentifier, event.code, event.key, event.keyCode /* windowsVirtualKeyCode */, event.keyCode /* nativeVirtualKeyCode */, false, false, false);
         event.consume();
         this._canvasElement.focus();
     },