Revert 138212 - Implement High Contrast mode for Chrome OS.

chrome/browser/chrome_browser_main_extra_parts_ash.cc

Index: chrome/browser/chrome_browser_main_extra_parts_ash.cc
===================================================================
--- chrome/browser/chrome_browser_main_extra_parts_ash.cc	(revision 138238)
+++ chrome/browser/chrome_browser_main_extra_parts_ash.cc	(working copy)
@@ -6,12 +6,10 @@
 
 #include "ash/accelerators/accelerator_controller.h"
 #include "ash/ash_switches.h"
-#include "ash/high_contrast/high_contrast_controller.h"
 #include "ash/shell.h"
 #include "ash/wm/key_rewriter_event_filter.h"
 #include "ash/wm/property_util.h"
 #include "base/command_line.h"
-#include "chrome/browser/chromeos/accessibility/accessibility_util.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/ui/views/ash/caps_lock_handler.h"
 #include "chrome/browser/ui/views/ash/chrome_shell_delegate.h"
@@ -78,9 +76,6 @@
   shell->accelerator_controller()->SetVolumeControlDelegate(
       scoped_ptr<ash::VolumeControlDelegate>(new VolumeController).Pass());
 
-  ash::Shell::GetInstance()->high_contrast_controller()->SetEnabled(
-      chromeos::accessibility::IsHighContrastEnabled());
-
   if (!CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kDisableZeroBrowsersOpenForTests)) {
     browser::StartKeepAlive();