Reconfigure displays even if the output count didn't change

chromeos/display/output_configurator.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROMEOS_DISPLAY_OUTPUT_CONFIGURATOR_H_
 #define CHROMEOS_DISPLAY_OUTPUT_CONFIGURATOR_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 17 matching lines @@
 struct _XRROutputInfo;
 typedef _XRROutputInfo XRROutputInfo;
 struct _XRRScreenResources;
 typedef _XRRScreenResources XRRScreenResources;
 
 namespace chromeos {
 
 struct OutputSnapshot;
 
 // Used to describe the state of a multi-display configuration.
-// TODO(oshima): remove DUAL_SECONDARY_ONLY
 enum OutputState {
   STATE_INVALID,
   STATE_HEADLESS,
   STATE_SINGLE,
   STATE_DUAL_MIRROR,
-  STATE_DUAL_PRIMARY_ONLY,
-  STATE_DUAL_SECONDARY_ONLY,
+  STATE_DUAL_EXTENDED,

[Jun Mukai, 2013/02/14 22:13:03]

STATE_DUAL_PRIMARY_ONLY and _SECONDARY_ONLY are referred from
ash/system/chromeos/tray_display.cc and
chrome/browser/ui/webui/options/chromeos/display_options_handler.cc
Please edit these files too.

% git grep -l 'STATE_DUAL_\(PRIMARY\|SECONDARY\)_ONLY'
ash/system/chromeos/tray_display.cc
chrome/browser/ui/webui/options/chromeos/display_options_handler.cc
chromeos/display/output_configurator.cc
chromeos/display/output_configurator.h

[oshima, 2013/02/14 22:33:12]

Done.

   STATE_DUAL_UNKNOWN,
 };
 
 // This class interacts directly with the underlying Xrandr API to manipulate
 // CTRCs and Outputs.  It will likely grow more state, over time, or expose
 // Output info in other ways as more of the Chrome display code grows up around
 // it.
 class CHROMEOS_EXPORT OutputConfigurator : public MessageLoop::Dispatcher {
  public:
   class Observer {
@@ skipping 156 matching lines @@
 
   // Indicates the time at which |output_state_| was entered.
   base::TimeTicks last_enter_state_time_;
 
   DISALLOW_COPY_AND_ASSIGN(OutputConfigurator);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DISPLAY_OUTPUT_CONFIGURATOR_H_