Chrome OS: avoid suspending on lid close when casting is active.

chromeos/display/output_configurator.h

Index: chromeos/display/output_configurator.h
diff --git a/chromeos/display/output_configurator.h b/chromeos/display/output_configurator.h
index db6e8517e1ef2fefad23a8a54c11fbc50041bcd5..96d6ae5ba57c3495b10682c9845b68ea367182ec 100644
--- a/chromeos/display/output_configurator.h
+++ b/chromeos/display/output_configurator.h
@@ -15,6 +15,7 @@
 #include "base/message_loop/message_loop.h"
 #include "base/observer_list.h"
 #include "base/timer/timer.h"
+#include "chrome/browser/media/media_capture_devices_dispatcher.h"
 #include "chromeos/chromeos_export.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 
@@ -65,7 +66,8 @@ enum HDCPState {
 // CTRCs and Outputs.
 class CHROMEOS_EXPORT OutputConfigurator
     : public base::MessageLoop::Dispatcher,
-      public base::MessagePumpObserver {
+      public base::MessagePumpObserver,
+      public MediaCaptureDevicesDispatcher::Observer {
  public:
   typedef uint64_t OutputProtectionClientId;
   static const OutputProtectionClientId kInvalidClientId = 0;
@@ -378,6 +380,12 @@ class CHROMEOS_EXPORT OutputConfigurator
       const base::NativeEvent& event) OVERRIDE;
   virtual void DidProcessEvent(const base::NativeEvent& event) OVERRIDE;
 
+  // Overridden from MediaCaptureDevicesDispatcher::Observer.
+  virtual void OnRequestUpdate(int render_process_id,
+                               int render_view_id,
+                               const content::MediaStreamDevice& device,
+                               const content::MediaRequestState state) OVERRIDE;
+
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
@@ -502,6 +510,9 @@ class CHROMEOS_EXPORT OutputConfigurator
   // Applies output protections according to requests.
   bool ApplyProtections(const DisplayProtections& requests);
 
+  // Sends the current projecting state to power manager.
+  void SendProjectingStateToPowerManager();
+
   StateController* state_controller_;
   SoftwareMirroringController* mirroring_controller_;
   scoped_ptr<Delegate> delegate_;
@@ -550,6 +561,9 @@ class CHROMEOS_EXPORT OutputConfigurator
   // Output protection requests of each client.
   ProtectionRequests client_protection_requests_;
 
+  // Number of outstanding screen sharing sessions.
+  int screen_sharing_count_;
+
   DISALLOW_COPY_AND_ASSIGN(OutputConfigurator);
 };