Revert "Move sharing messages to sync protocol directory."

This reverts commit fa7708ed.

Reason for revert: Breaks this bot: https://ci.chromium.org/p/chromium/builders/ci/linux-archive-rel/12814

Original change's description:
> Move sharing messages to sync protocol directory.
> 
> Bug: 1018129
> Change-Id: I1aa4d71364fd9324770807ec5c0edb11a5939e0e
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1890410
> Reviewed-by: Mikel Astiz <mastiz@chromium.org>
> Reviewed-by: Richard Knoll <knollr@chromium.org>
> Commit-Queue: Michael van Ouwerkerk <mvanouwerkerk@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#710768}

TBR=mvanouwerkerk@chromium.org,mastiz@chromium.org,knollr@chromium.org

Change-Id: Ic9cc83a44b50f18af9e806bd7a74a318761a385b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1018129
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1890533Reviewed-by: anthonyvd <anthonyvd@chromium.org>
Commit-Queue: anthonyvd <anthonyvd@chromium.org>
Cr-Commit-Position: refs/heads/master@{#710771}

chrome/browser/BUILD.gn

@@ -1933,6 +1933,7 @@ jumbo_static_library("browser") {
     "//chrome/browser/resource_coordinator:mojo_bindings",
     "//chrome/browser/resource_coordinator:tab_manager_features",
     "//chrome/browser/safe_browsing",
+    "//chrome/browser/sharing/proto",
     "//chrome/browser/ssl:proto",
     "//chrome/browser/touch_to_fill",
     "//chrome/browser/ui",

chrome/browser/sharing/proto/BUILD.gn

+# Copyright 2019 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//third_party/protobuf/proto_library.gni")
+
+group("proto_lite") {
+  public_deps = [
+    ":proto",
+    "//third_party/protobuf:protobuf_lite",
+  ]
+}
+
+proto_library("proto") {
+  sources = [
+    "click_to_call_message.proto",
+    "shared_clipboard_message.proto",
+    "sharing_message.proto",
+    "sms_fetch_message.proto",
+  ]
+}

components/sync/protocol/sharing_message.proto → chrome/browser/sharing/proto/sharing_message.proto

@@ -4,9 +4,9 @@
 
 syntax = "proto3";
 
-import "sharing_click_to_call_message.proto";
-import "sharing_shared_clipboard_message.proto";
-import "sharing_sms_fetch_message.proto";
+import "click_to_call_message.proto";
+import "shared_clipboard_message.proto";
+import "sms_fetch_message.proto";
 
 package chrome_browser_sharing;
 

components/sync/protocol/OWNERS

@@ -2,5 +2,3 @@ markusheintz@chromium.org
 mastiz@chromium.org
 treib@chromium.org
 tschumann@chromium.org
-
-per-file sharing_*=file://chrome/browser/sharing/OWNERS

components/sync/protocol/protocol_sources.gni

@@ -50,10 +50,6 @@ sync_protocol_bases = [
   "security_event_specifics",
   "send_tab_to_self_specifics",
   "session_specifics",
-  "sharing_click_to_call_message",
-  "sharing_message",
-  "sharing_shared_clipboard_message",
-  "sharing_sms_fetch_message",
   "sync",
   "sync_enums",
   "synced_notification_app_info_specifics",