Mustash: move content::GPUVideoMemoryUsageStats to gpu::VideoMemoryUsageStats

gpu/ipc/common/BUILD.gn

 # Copyright 2016 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.
 
-# See //content/BUILD.gn for how this works.
-group("gpu") {
+group("ipc") {
   if (is_component_build) {
     public_deps = [
-      "//content",
+      "//gpu",
     ]
   } else {
     public_deps = [
-      ":gpu_sources",
+      ":ipc_common_sources",
     ]
   }
 }
 
-source_set("gpu_sources") {
-  visibility = [ "//content/*" ]
+source_set("ipc_common_sources") {
+  visibility = [ "//gpu/*" ]
 
   sources = [
-    "content_gpu_client.h",
+    "memory_stats.cc",
+    "memory_stats.h",
   ]
 
+  configs += [ "//gpu:gpu_implementation" ]
+
   deps = [
     "//base",
-    "//content:export",
-    "//content/gpu:gpu_sources",
+    "//ipc",
   ]
 }