ImageCapture: Implement takePhoto() for Mac AVFoundation

media/base/mac/coremedia_glue.h

Index: media/base/mac/coremedia_glue.h
diff --git a/media/base/mac/coremedia_glue.h b/media/base/mac/coremedia_glue.h
index 9f69f96f091feea90128edbda193278eddcc8e21..093427cd9b6a19107b68c91f9d44f756371fa0df 100644
--- a/media/base/mac/coremedia_glue.h
+++ b/media/base/mac/coremedia_glue.h
@@ -52,6 +52,7 @@ class MEDIA_EXPORT CoreMediaGlue {
     kCMPixelFormat_422YpCbCr8_yuvs = 'yuvs',
   };
   enum {
+    kCMVideoCodecType_JPEG = 'jpeg',
     kCMVideoCodecType_JPEG_OpenDML = 'dmb1',
     kCMVideoCodecType_H264 = 'avc1',
   };