Move ranker_model_loader to a new component.

components/machine_intelligence/proto/translate_ranker_model.proto

 // Copyright (c) 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.
 //
 // Experimental Translation Assist Model to allow/suppress translation prompts.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
-package chrome_intelligence;
+package machine_intelligence;
 
 // Defines a Chrome Ranker Translate Model.
 // Next tag: 13
 message TranslateRankerModel {
   // A number that identifies the version of this model.
   optional uint32 version = 1;
 
   // Defines the weights and bias of a Logistic Regression Model.
   message LogisticRegressionModel {
     // Decision threshold. If not defined, use 0.5.
@@ skipping 15 matching lines @@
     map<string, float> source_language_weight = 5;
     map<string, float> target_language_weight = 6;
     map<string, float> country_weight = 7;
     map<string, float> locale_weight = 8;
   }
 
   oneof model_revision {
     LogisticRegressionModel logistic_regression_model = 2;
   }
 }