Cast: cast.streaming API to support null audio (or video) track

chrome/browser/media/media_capture_devices_dispatcher.cc

Index: chrome/browser/media/media_capture_devices_dispatcher.cc
diff --git a/chrome/browser/media/media_capture_devices_dispatcher.cc b/chrome/browser/media/media_capture_devices_dispatcher.cc
index 136139a4d68ce254809c377c010face81becb097..041347c8f0cfa218d72e1523b4b945d44f09876d 100644
--- a/chrome/browser/media/media_capture_devices_dispatcher.cc
+++ b/chrome/browser/media/media_capture_devices_dispatcher.cc
@@ -117,7 +117,6 @@ bool IsBuiltInExtension(const GURL& origin) {
 
 // Returns true of the security origin is associated with casting.
 bool IsOriginForCasting(const GURL& origin) {
-#if defined(OFFICIAL_BUILD)
   // Whitelisted tab casting extensions.
   return
       // Dev
@@ -130,9 +129,6 @@ bool IsOriginForCasting(const GURL& origin) {
       origin.spec() == "chrome-extension://dliochdbjfkdbacpmhlcpmleaejidimm/" ||
       // Google Cast Stable
       origin.spec() == "chrome-extension://boadgeojelhgndaghljhdicfkmllpafd/";
-#else
-  return false;
-#endif
 }
 
 // Helper to get title of the calling application shown in the screen capture