Center lock screen user pod when virtual keyboard is shown.

chrome/browser/resources/login/display_manager.js

Index: chrome/browser/resources/login/display_manager.js
diff --git a/chrome/browser/resources/login/display_manager.js b/chrome/browser/resources/login/display_manager.js
index b4c355c4a8be77e7e1f24e30ca9c262eae2c45ab..6c535e9a4517bdc289854a97583cf28d328f5d90 100644
--- a/chrome/browser/resources/login/display_manager.js
+++ b/chrome/browser/resources/login/display_manager.js
@@ -179,6 +179,18 @@ cr.define('cr.ui.login', function() {
     virtualKeyboardShown_: false,
 
     /**
+     * Virtual keyboard width.
+     * @type {number}
+     */
+    virtualKeyboardWidth_: 0,
+
+    /**
+     * Virtual keyboard height.
+     * @type {number}
+     */
+    virtualKeyboardHeight_: 0,
+
+    /**
      * Type of UI.
      * @type {string}
      */
@@ -244,6 +256,24 @@ cr.define('cr.ui.login', function() {
     },
 
     /**
+     * Sets the current size of the virtual keyboard.
+     * @param {number} width keyboard width
+     * @param {number} height keyboard height
+     */
+    setVirtualKeyboardSize: function(width, height) {
+      this.virtualKeyboardWidth_ = width;
+      this.virtualKeyboardHeight_ = height;
+
+      // Special case for screen lock. http://crbug.com/377904
+      // In case of virtual keyboard adjuct work area.
+      if (this.displayType == DISPLAY_TYPE.LOCK) {
+        var bottom = (height) ? height : $('login-header-bar').offsetHeight;
+        var clientArea = $('outer-container');
+        clientArea.style.bottom = bottom + 'px';

[dzhioev (left Google), 2014/05/29 15:42:52]

nit: toCssPx(bottom)

[Nikita (slow), 2014/05/29 15:51:20]

Done.

+      }
+    },
+
+    /**
      * Sets the current size of the client area (display size).
      * @param {number} width client area width
      * @param {number} height client area height