*DRAFT* Move MediaDeviceIDSalt from chrome/ to components/ and use it in Android WebView.

components/media_device_id_salt.gypi

Index: components/media_device_id_salt.gypi
diff --git a/components/profile_metrics.gypi b/components/media_device_id_salt.gypi
similarity index 63%
copy from components/profile_metrics.gypi
copy to components/media_device_id_salt.gypi
index 49e713ada4ce35d0a8f06ae5d98388a7956bf53d..3a9dee99e7805daa6fa5da927a393d7ab506b0e5 100644
--- a/components/profile_metrics.gypi
+++ b/components/media_device_id_salt.gypi
@@ -5,19 +5,19 @@
 {
   'targets': [
     {
-      # GN version: //components/profile_metrics
-      'target_name': 'profile_metrics',
+      'target_name': 'media_device_id_salt',
       'type': 'static_library',
-      'include_dirs': [
-        '..',
-      ],
       'dependencies': [
         '../base/base.gyp:base',
+        'pref_registry',
+        'prefs/prefs.gyp:prefs',
+      ],
+      'include_dirs': [
+        '..',
       ],
       'sources': [
-        # Note: sources list duplicated in GN build.
-        'profile_metrics/counts.cc',
-        'profile_metrics/counts.h',
+        'media_device_id_salt/media_device_id_salt.h',
+        'media_device_id_salt/media_device_id_salt.cc',
       ],
     },
   ],