mac: Remove IsOSMavericksOrLater()

media/gpu/vt_video_encode_accelerator_mac.cc

Index: media/gpu/vt_video_encode_accelerator_mac.cc
diff --git a/media/gpu/vt_video_encode_accelerator_mac.cc b/media/gpu/vt_video_encode_accelerator_mac.cc
index e38efd117b3e8dd7c473b2d757e0ce6da63f9177..32d1b8ab75e7e29537bd395c55d9e1cb2f8bdd6d 100644
--- a/media/gpu/vt_video_encode_accelerator_mac.cc
+++ b/media/gpu/vt_video_encode_accelerator_mac.cc
@@ -6,7 +6,6 @@
 
 #include <memory>
 
-#include "base/mac/mac_util.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "media/base/mac/coremedia_glue.h"
 #include "media/base/mac/corevideo_glue.h"
@@ -106,11 +105,6 @@ VTVideoEncodeAccelerator::GetSupportedProfiles() {
     DLOG(ERROR) << "Failed creating VideoToolbox glue.";
     return profiles;
   }
-  if (!base::mac::IsOSMavericksOrLater()) {
-    DLOG(ERROR) << "VideoToolbox hardware encoder is supported on Mac OS 10.9 "
-                   "and later.";
-    return profiles;
-  }
   const bool rv = CreateCompressionSession(
       video_toolbox::DictionaryWithKeysAndValues(nullptr, nullptr, 0),
       gfx::Size(kDefaultResolutionWidth, kDefaultResolutionHeight), true);
@@ -158,11 +152,6 @@ bool VTVideoEncodeAccelerator::Initialize(VideoPixelFormat format,
     DLOG(ERROR) << "Failed creating VideoToolbox glue.";
     return false;
   }
-  if (!base::mac::IsOSMavericksOrLater()) {
-    DLOG(ERROR) << "VideoToolbox hardware encoder is supported on Mac OS 10.9 "
-                   "and later.";
-    return false;
-  }
 
   client_ptr_factory_.reset(new base::WeakPtrFactory<Client>(client));
   client_ = client_ptr_factory_->GetWeakPtr();