viz: Move some code into //components/viz/common.

components/viz/common/BUILD.gn

Index: components/viz/common/BUILD.gn
diff --git a/components/viz/common/BUILD.gn b/components/viz/common/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..01f96cb87adf1b44156388bdddd806d9354de337
--- /dev/null
+++ b/components/viz/common/BUILD.gn
@@ -0,0 +1,22 @@
+# Copyright 2017 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.
+
+source_set("common") {
+  sources = [
+    "server_gpu_memory_buffer_manager.cc",
+    "server_gpu_memory_buffer_manager.h",
+  ]
+
+  deps = [
+    "//gpu/ipc/client",
+    "//gpu/ipc/common",
+    "//services/ui/gpu/interfaces",
+  ]
+
+  public_deps = [
+    "//gpu/command_buffer/client",
+    "//gpu/ipc/host",
+    "//ui/gfx",
+  ]
+}