[Chromoting] Initial plumbing for cursor shape.

remoting/host/capturer_mac.cc

 // 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.
 
 #include "remoting/host/capturer.h"
 
 #include <ApplicationServices/ApplicationServices.h>
 #include <dlfcn.h>
 #include <IOKit/pwr_mgt/IOPMLib.h>
 #include <OpenGL/CGLMacro.h>
@@ skipping 140 matching lines @@
 
 // A class to perform capturing for mac.
 class CapturerMac : public Capturer {
  public:
   CapturerMac();
   virtual ~CapturerMac();
 
   bool Init();
 
   // Capturer interface.
-  virtual void Start() OVERRIDE;
+  virtual void Start(const CursorShapeChangedCallback& callback) OVERRIDE;
   virtual void Stop() OVERRIDE;
   virtual void ScreenConfigurationChanged() OVERRIDE;
   virtual media::VideoFrame::Format pixel_format() const OVERRIDE;
   virtual void ClearInvalidRegion() OVERRIDE;
   virtual void InvalidateRegion(const SkRegion& invalid_region) OVERRIDE;
   virtual void InvalidateScreen(const SkISize& size) OVERRIDE;
   virtual void InvalidateFullScreen() OVERRIDE;
   virtual void CaptureInvalidRegion(
       const CaptureCompletedCallback& callback) OVERRIDE;
   virtual const SkISize& size_most_recent() const OVERRIDE;
@@ skipping 127 matching lines @@
     cgl_context_ = NULL;
   }
   // The buffers might be in use by the encoder, so don't delete them here.
   // Instead, mark them as "needs update"; next time the buffers are used by
   // the capturer, they will be recreated if necessary.
   for (int i = 0; i < kNumBuffers; ++i) {
     buffers_[i].set_needs_update();
   }
 }
 
-void CapturerMac::Start() {
+void CapturerMac::Start(
+    const CursorShapeChangedCallback& callback) {
+  cursor_shape_changed_callback_ = callback;
+
   // Create power management assertions to wake the display and prevent it from
   // going to sleep on user idle.
   IOPMAssertionCreate(kIOPMAssertionTypeNoDisplaySleep,
                       kIOPMAssertionLevelOn,
                       &power_assertion_id_display_);
   IOPMAssertionCreate(CFSTR("UserIsActive"),
                       kIOPMAssertionLevelOn,
                       &power_assertion_id_user_);
 }
 
 void CapturerMac::Stop() {
   if (power_assertion_id_display_ != kIOPMNullAssertionID) {
     IOPMAssertionRelease(power_assertion_id_display_);
     power_assertion_id_display_ = kIOPMNullAssertionID;
   }
   if (power_assertion_id_user_ != kIOPMNullAssertionID) {
     IOPMAssertionRelease(power_assertion_id_user_);
     power_assertion_id_user_ = kIOPMNullAssertionID;
   }
 }
 
+void CapturerMac::SetCursorShapeChangedCallback(
+    const CursorShapeChangedCallback& callback) {
+  // TODO(garykac) Implement cursor shape for Mac. (crbug.com/116299)
+}
+
 void CapturerMac::ScreenConfigurationChanged() {
   ReleaseBuffers();
   helper_.ClearInvalidRegion();
   last_buffer_ = NULL;
 
   CGDirectDisplayID mainDevice = CGMainDisplayID();
   int width = CGDisplayPixelsWide(mainDevice);
   int height = CGDisplayPixelsHigh(mainDevice);
   InvalidateScreen(SkISize::Make(width, height));
 
@@ skipping 326 matching lines @@
 Capturer* Capturer::Create() {
   CapturerMac* capturer = new CapturerMac();
   if (!capturer->Init()) {
     delete capturer;
     capturer = NULL;
   }
   return capturer;
 }
 
 }  // namespace remoting