Move CoreVideoFrameBuffer from webrtc/common_video/ to webrtc/sdk/objc/

webrtc/sdk/BUILD.gn

Index: webrtc/sdk/BUILD.gn
diff --git a/webrtc/sdk/BUILD.gn b/webrtc/sdk/BUILD.gn
index ad8cda6cd832195a1dfa40ba701bccb31e518f6c..0189b88e933194ea4f92361f156fc436126aac51 100644
--- a/webrtc/sdk/BUILD.gn
+++ b/webrtc/sdk/BUILD.gn
@@ -212,6 +212,7 @@ if (is_ios || is_mac) {
     ]
 
     deps = [
+      ":rtc_sdk_corevideoframebuffer",
       ":webrtc_h264_video_toolbox",
       "../api:video_frame_api",
       "../base:rtc_base",
@@ -424,6 +425,20 @@ if (is_ios || is_mac) {
     ]
   }
 
+  rtc_static_library("rtc_sdk_corevideoframebuffer") {
+    sources = [
+      "objc/Framework/Classes/corevideo_frame_buffer.cc",
+      "objc/Framework/Classes/corevideo_frame_buffer.h",
+    ]
+
+    deps = [
+      "../base:rtc_base_approved",
+      "../common_video",
+    ]
+
+    libs = [ "CoreVideo.framework" ]
+  }
+
   rtc_static_library("webrtc_h264_video_toolbox") {
     sources = [
       "objc/Framework/Classes/h264_video_toolbox_decoder.cc",
@@ -438,6 +453,7 @@ if (is_ios || is_mac) {
 
     deps = [
       ":rtc_sdk_common_objc",
+      ":rtc_sdk_corevideoframebuffer",
       "../api:video_frame_api",
       "../base:rtc_base_approved",
       "../common_video",