Mac AVFoundation: minor bugfix using QTKit for devices not working with AVF (Blackmagic).

media/video/capture/mac/video_capture_device_mac.mm

Index: media/video/capture/mac/video_capture_device_mac.mm
diff --git a/media/video/capture/mac/video_capture_device_mac.mm b/media/video/capture/mac/video_capture_device_mac.mm
index 1a65e990910aac11cf50c43983ec3d117ac30bf8..6f2271010d19339abd193d1e1413e665537cba5c 100644
--- a/media/video/capture/mac/video_capture_device_mac.mm
+++ b/media/video/capture/mac/video_capture_device_mac.mm
@@ -24,11 +24,12 @@ const size_t kVidPidSize = 4;
 
 // Some devices are not correctly supported in AVFoundation, f.i. Blackmagic,
 // see http://crbug.com/347371. The devices are identified by USB Vendor ID and
-// by a characteristic substring of the name, usually the vendor's name.
+// by a characteristic substring of the name, usually the vendor's name. USB VID
+// is written uppercase.

[tommi (sloooow) - chröme, 2014/04/28 08:17:10]

nit: written in uppercase

Btw, would it make sense to have a case insensitive check against the blacklist?

[mcasas, 2014/04/28 08:31:20]

Yeah I doubted between that and forcing uppercase
in the list, but I guess the case-insensitive is more 
robust, so done.

 const struct NameAndVid {
   const char* vid;
   const char* name;
-} kBlacklistedCameras[] = { { "a82c", "Blackmagic" } };
+} kBlacklistedCameras[] = { { "A82C", "Blackmagic" } };
 
 const struct Resolution {
   const int width;