Move array_view.h to webrtc/api/

webrtc/api/BUILD.gn

Index: webrtc/api/BUILD.gn
diff --git a/webrtc/api/BUILD.gn b/webrtc/api/BUILD.gn
index e58f3932ade5e022dfdc6c0396f63217628d3208..2e3d77a03a3c8c8f54130b50db42d7470ecbad84 100644
--- a/webrtc/api/BUILD.gn
+++ b/webrtc/api/BUILD.gn
@@ -198,6 +198,15 @@ rtc_source_set("video_frame_api") {
   }
 }
 
+rtc_source_set("array_view") {
+  sources = [
+    "array_view.h",
+  ]
+  deps = [
+    "../rtc_base:rtc_base_approved",
+  ]
+}
+
 rtc_source_set("libjingle_peerconnection_test_api") {
   testonly = true
   sources = [
@@ -256,6 +265,7 @@ if (rtc_include_tests) {
       visibility = [ "..:rtc_unittests" ]
     }
     sources = [
+      "array_view_unittest.cc",
       "ortc/mediadescription_unittest.cc",
       "ortc/sessiondescription_unittest.cc",
       "rtcerror_unittest.cc",
@@ -268,8 +278,11 @@ if (rtc_include_tests) {
     }
 
     deps = [
+      ":array_view",
       ":libjingle_peerconnection_api",
       ":ortc_api",
+      "../rtc_base:rtc_base_approved",
+      "../rtc_base:rtc_base_tests_utils",
       "../test:test_support",
     ]
   }