Move Mac media glue code from media/video/capture/mac to media/base/mac

media/base/mac/BUILD.gn

Index: media/base/mac/BUILD.gn
diff --git a/components/history/core/common/BUILD.gn b/media/base/mac/BUILD.gn
similarity index 55%
copy from components/history/core/common/BUILD.gn
copy to media/base/mac/BUILD.gn
index 7a493141978ebc86786ede32720f563e8a537d74..938fdab3f9521cef8d099e18aa8567acac619984 100644
--- a/components/history/core/common/BUILD.gn
+++ b/media/base/mac/BUILD.gn
@@ -2,13 +2,13 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-static_library("common") {
-  sources = [
-    "thumbnail_score.cc",
-    "thumbnail_score.h",
-  ]
+assert(is_mac || is_ios)
 
-  deps = [
-    "//base",
+source_set("mac") {
+  sources = [
+    "avfoundation_glue.h",
+    "avfoundation_glue.mm",
+    "coremedia_glue.h",
+    "coremedia_glue.mm",
   ]
 }