[memory-infra] Adds a warning about file moving

GraphProcessor and GlobalDumpGraph will be moved from Chromium to the
Perfetto repository. This patch adds some scary notes at the top of the
header files to inform that those files will be removed from the
Chromium repository. See crbug.com/1095982 for more details.

Bug: 1095982
Change-Id: Id4bf3b4d0f7577fe60f9a65089969f639d3e70bc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2252044Reviewed-by: Primiano Tucci <primiano@chromium.org>
Commit-Queue: Primiano Tucci <primiano@chromium.org>
Cr-Commit-Position: refs/heads/master@{#780293}

services/resource_coordinator/memory_instrumentation/graph.h

@@ -2,6 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// This file is being migrated to the //third_party/perfetto repository
+// as part of the plan in http://crbug.com/1095982. Until the migration
+// is finished, there will be two copies around. Contact
+// mobica-google-contributors@mobica.com if you feel you need to make
+// non-trivial changes to this file.
+
 #ifndef SERVICES_RESOURCE_COORDINATOR_MEMORY_INSTRUMENTATION_GRAPH_H_
 #define SERVICES_RESOURCE_COORDINATOR_MEMORY_INSTRUMENTATION_GRAPH_H_
 

services/resource_coordinator/memory_instrumentation/graph_processor.h

@@ -2,6 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// This file is being migrated to the //third_party/perfetto repository
+// as part of the plan in http://crbug.com/1095982. Until the migration
+// is finished, there will be two copies around. Contact
+// mobica-google-contributors@mobica.com if you feel you need to make
+// non-trivial changes to this file.
+
 #ifndef SERVICES_RESOURCE_COORDINATOR_MEMORY_INSTRUMENTATION_GRAPH_PROCESSOR_H_
 #define SERVICES_RESOURCE_COORDINATOR_MEMORY_INSTRUMENTATION_GRAPH_PROCESSOR_H_