Move //chrome/common/metrics/proto to //chrome/browser/metrics/variations/proto.

chrome/common/metrics/proto/chrome_experiments.proto

Index: chrome/common/metrics/proto/chrome_experiments.proto
diff --git a/chrome/common/metrics/proto/chrome_experiments.proto b/chrome/common/metrics/proto/chrome_experiments.proto
deleted file mode 100644
index fc46d336e36cbe57f71056faeccccf688430bafa..0000000000000000000000000000000000000000
--- a/chrome/common/metrics/proto/chrome_experiments.proto
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012 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.
-//
-// Summary of Chrome variations from experiments.
-
-syntax = "proto2";
-
-option optimize_for = LITE_RUNTIME;
-
-package metrics;
-
-message ChromeVariations {
-  // A list of Chrome experiment variation IDs that are active.
-  repeated int32 variation_id = 1;
-
-  // A list of Chrome experiment variation IDs that trigger server side
-  // behavior.
-  repeated int32 trigger_variation_id = 3;
-}