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>
 
 #include "base/basictypes.h"
 #include "base/event_types.h"
 #include "base/memory/scoped_ptr.h"
 #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"
 
 // Forward declarations for Xlib and Xrandr.
 // This is so unused X definitions don't pollute the namespace.
 typedef unsigned long XID;
 typedef XID RROutput;
 typedef XID RRCrtc;
 typedef XID RRMode;
 
@@ skipping 30 matching lines @@
 enum HDCPState {
   HDCP_STATE_UNDESIRED,
   HDCP_STATE_DESIRED,
   HDCP_STATE_ENABLED
 };
 
 // This class interacts directly with the underlying Xrandr API to manipulate
 // 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;
 
   struct ModeInfo {
     ModeInfo();
     ModeInfo(int width, int height, bool interlaced, float refresh_rate);
 
     int width;
     int height;
@@ skipping 292 matching lines @@
   // add/remove events.  Note that Output add/remove events are sent in response
   // to our own reconfiguration operations so spurious events are common.
   // Spurious events will have no effect.
   virtual bool Dispatch(const base::NativeEvent& event) OVERRIDE;
 
   // Overridden from base::MessagePumpObserver:
   virtual base::EventStatus WillProcessEvent(
       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);
 
   // Sets all the displays into pre-suspend mode; usually this means
   // configure them for their resume state. This allows faster resume on
   // machines where display configuration is slow.
   void SuspendDisplays();
 
   // Reprobes displays to handle changes made while the system was
   // suspended.
@@ skipping 104 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);
 
+  // Sends the current projecting state to power manager.
+  void SendProjectingStateToPowerManager();
+
   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_