aura: Fix Chrome OS status area browser tests.

chrome/browser/chromeos/status/power_menu_button_browsertest.cc

Index: chrome/browser/chromeos/status/power_menu_button_browsertest.cc
diff --git a/chrome/browser/chromeos/status/power_menu_button_browsertest.cc b/chrome/browser/chromeos/status/power_menu_button_browsertest.cc
index fe476f0d7dc1c8c32ef482a1fb9b7497ad686f96..d61a700989184da84a3709c213a089f658efae34 100644
--- a/chrome/browser/chromeos/status/power_menu_button_browsertest.cc
+++ b/chrome/browser/chromeos/status/power_menu_button_browsertest.cc
@@ -9,6 +9,12 @@
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/test/base/in_process_browser_test.h"
+#include "views/view.h"
+
+#if defined(USE_AURA)
+#include "ui/aura_shell/shell.h"
+#include "views/widget/widget.h"
+#endif
 
 namespace chromeos {
 
@@ -21,9 +27,15 @@ class PowerMenuButtonTest : public InProcessBrowserTest {
   }
 
   PowerMenuButton* GetPowerMenuButton() {
-    BrowserView* view = static_cast<BrowserView*>(browser()->window());
-    return static_cast<PowerMenuButton*>(view->GetViewByID(
-        VIEW_ID_STATUS_BUTTON_POWER));
+    views::View *view =
+#if defined(USE_AURA)
+        aura_shell::Shell::GetInstance()->GetStatusAreaWidget()->
+            GetContentsView();
+#else
+        static_cast<BrowserView*>(browser()->window());
+#endif
+    return static_cast<PowerMenuButton*>(
+        view->GetViewByID(VIEW_ID_STATUS_BUTTON_POWER));
   }
 
   string16 CallPowerChangedAndGetTooltipText(const PowerSupplyStatus& status) {