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

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 <map>
 #include <string>
 #include <vector>
@@ skipping 407 matching lines @@
 
   // Requests the desired protection methods.
   // |protection_mask| is the desired protection methods, which is a bitmask
   // of the OutputProtectionMethod values.
   // Returns true when the protection request has been made.
   bool EnableOutputProtection(
       OutputProtectionClientId client_id,
       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;
   // Mapping a client to its protection request.
   typedef std::map<OutputProtectionClientId,
                    DisplayProtections> ProtectionRequests;
 
   // Updates |cached_outputs_| to contain currently-connected outputs. Calls
   // |delegate_->GetOutputs()| and then does additional work, like finding the
   // mirror mode and setting user-preferred modes. Note that the server must be
@@ skipping 57 matching lines @@
       int frame_buffer_height);
 
   // Returns the ratio between mirrored mode area and native mode area:
   // (mirror_mode_width * mirrow_mode_height) / (native_width * native_height)
   float GetMirroredDisplayAreaRatio(
       const OutputConfigurator::OutputSnapshot& output);
 
   // 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_;
 
   // Used to enable modes which rely on panel fitting.
   bool is_panel_fitting_enabled_;
 
   // Key of the map is the touch display's id, and the value of the map is the
   // touch display's area ratio in mirror mode defined as :
   // mirror_mode_area / native_mode_area.
@@ skipping 28 matching lines @@
   // The timer to delay configuring outputs. See also the comments in
   // Dispatch().
   scoped_ptr<base::OneShotTimer<OutputConfigurator> > configure_timer_;
 
   // Id for next output protection client.
   OutputProtectionClientId next_output_protection_client_id_;
 
   // 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);
 };
 
 typedef std::vector<OutputConfigurator::OutputSnapshot> OutputSnapshotList;
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DISPLAY_OUTPUT_CONFIGURATOR_H_