Mac Video Capture Device: split VCD into VCD and Factory.

media/video/capture/video_capture_device_factory.cc

Index: media/video/capture/video_capture_device_factory.cc
diff --git a/media/video/capture/video_capture_device_factory.cc b/media/video/capture/video_capture_device_factory.cc
index e63225dc178c9ea375bd62f965ccea9440b73f4f..661900c4118f11091462c670f43e4e6420af02dc 100644
--- a/media/video/capture/video_capture_device_factory.cc
+++ b/media/video/capture/video_capture_device_factory.cc
@@ -4,11 +4,47 @@
 
 #include "media/video/capture/video_capture_device_factory.h"
 
+#include "base/command_line.h"
+#include "media/base/media_switches.h"
+#include "media/video/capture/fake_video_capture_device_factory.h"
+#include "media/video/capture/file_video_capture_device_factory.h"
+
+#if defined(OS_MACOSX)
+#include "media/video/capture/mac/video_capture_device_factory_mac.h"
+#endif
+
 namespace media {
 
+// static
+scoped_ptr<VideoCaptureDeviceFactory>
+    VideoCaptureDeviceFactory::CreateFactory() {
+  const CommandLine* command_line = CommandLine::ForCurrentProcess();
+  // Use a Fake or File Video Device Factory if the command line flags are
+  // present, otherwise use the normal, platform-dependent, device factory.
+  if (command_line->HasSwitch(switches::kUseFakeDeviceForMediaStream)) {
+    if (command_line->HasSwitch(switches::kUseFileForFakeVideoCapture)) {
+      return scoped_ptr<VideoCaptureDeviceFactory>(new
+          media::FileVideoCaptureDeviceFactory());
+    } else {
+      return scoped_ptr<VideoCaptureDeviceFactory>(new
+          media::FakeVideoCaptureDeviceFactory());
+    }
+  } else {
+#if defined(OS_MACOSX)
+    return scoped_ptr<VideoCaptureDeviceFactory>(new
+        VideoCaptureDeviceFactoryMac());
+#else
+    return scoped_ptr<VideoCaptureDeviceFactory>(new
+        VideoCaptureDeviceFactory());
+#endif
+  }
+}
+
 VideoCaptureDeviceFactory::VideoCaptureDeviceFactory() {
   thread_checker_.DetachFromThread();
-};
+}
+
+VideoCaptureDeviceFactory::~VideoCaptureDeviceFactory() {}
 
 scoped_ptr<VideoCaptureDevice> VideoCaptureDeviceFactory::Create(
     const VideoCaptureDevice::Name& device_name) {