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..f2c6c1b85cfa3887350dea7f61e8cacab0e47a9d 100644
--- a/chromeos/display/output_configurator.h
+++ b/chromeos/display/output_configurator.h
@@ -425,6 +425,9 @@ class CHROMEOS_EXPORT OutputConfigurator
       int64 display_id,
       uint32_t desired_protection_mask);
 
+  // Updates number of active screen sharing sessions.
+  void SetScreenSharingCount(int screen_sharing_count);
+
  private:
   // Mapping a display_id to a protection request bitmask.
   typedef std::map<int64, uint32_t> DisplayProtections;
@@ -502,6 +505,9 @@ class CHROMEOS_EXPORT OutputConfigurator
   // Applies output protections according to requests.
   bool ApplyProtections(const DisplayProtections& requests);
 
+  // Determines if we are projecting to an external display.
+  bool IsProjecting() const;
+
   StateController* state_controller_;
   SoftwareMirroringController* mirroring_controller_;
   scoped_ptr<Delegate> delegate_;
@@ -550,6 +556,9 @@ 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);
 };