Move variations component code to variations namespace.

components/variations/proto/study.proto

 // 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.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
-package chrome_variations;
+package variations;
 
 // This defines the Protocol Buffer representation of a Chrome Variations study
 // as sent to clients of the Variations server.
 //
 // Next tag: 13
 message Study {
   // The name of the study. Should not contain spaces or special characters.
   // Ex: "my_study"
   required string name = 1;
 
@@ skipping 216 matching lines @@
     // This is recommended for most studies that include client code.
     ACTIVATION_EXPLICIT  = 0;
     // The study will be automatically activated when it is created. This
     // is recommended for studies that do not have any client logic.
     ACTIVATION_AUTO      = 1;
   }
 
   // Activation type for this study. Defaults to ACTIVATION_EXPLICIT if omitted.
   optional ActivationType activation_type = 12;
 }