Reformat all gn files in /media/remoting.

`gn format` recently changed its formatting behavior
for deps, source, and a few other elements when they
are assigned (with =) single-element lists to be consistent
with the formatting of updates (with +=) with single-element.

Now that we've rolled in a GN binary with the change,
reformat all files so that people don't get presubmit
warnings due to this.

This CL was uploaded by git cl split.

R=mfoltz@chromium.org

Bug: 1041419
Change-Id: Ic27e22f6c510f6892da29aa78af3e506c56b092d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1997925
Auto-Submit: Nico Weber <thakis@chromium.org>
Reviewed-by: mark a. foltz <mfoltz@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#730948}

media/remoting/BUILD.gn

@@ -8,9 +8,7 @@ import("//third_party/protobuf/proto_library.gni")
 
 proto_library("media_remoting_proto") {
   proto_out_dir = "media/remoting"
-  sources = [
-    "media_remoting_rpc.proto",
-  ]
+  sources = [ "media_remoting_rpc.proto" ]
 }
 
 # This target is separate from "remoting" because this code is shared by the
@@ -30,9 +28,7 @@ source_set("rpc") {
     "//media",
   ]
 
-  public_deps = [
-    ":media_remoting_proto",
-  ]
+  public_deps = [ ":media_remoting_proto" ]
 }
 
 source_set("remoting") {