Implement new gray mock.

chrome/browser/chromeos/cros/power_library.cc

Index: chrome/browser/chromeos/cros/power_library.cc
diff --git a/chrome/browser/chromeos/cros/power_library.cc b/chrome/browser/chromeos/cros/power_library.cc
index e6d96c9b31b60f159fba51336455b1efc9633e47..b91dd31684aa88a2970d5c9fcf9000a6b51b80a8 100644
--- a/chrome/browser/chromeos/cros/power_library.cc
+++ b/chrome/browser/chromeos/cros/power_library.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -166,11 +166,11 @@ class PowerLibraryStubImpl : public PowerLibrary {
   void AddObserver(Observer* observer) {}
   void RemoveObserver(Observer* observer) {}
   bool line_power_on() const { return false; }
-  bool battery_is_present() const { return false; }
+  bool battery_is_present() const { return true; }
   bool battery_fully_charged() const { return false; }
-  double battery_percentage() const { return false; }
+  double battery_percentage() const { return 50.0; }
   base::TimeDelta battery_time_to_empty() const {
-    return base::TimeDelta::FromSeconds(0);
+    return base::TimeDelta::FromSeconds(10 * 60);
   }
   base::TimeDelta battery_time_to_full() const {
     return base::TimeDelta::FromSeconds(0);