Move ranker_model_loader to a new component.

components/machine_intelligence/proto/ranker_model.proto

 // Copyright (c) 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.
 //
 // Experimental Translation Assist Model to allow/suppress translation prompts.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
 import "translate_ranker_model.proto";
 
-package chrome_intelligence;
+package machine_intelligence;
 
 // Metadata for a ranker model instance. This data describes how the ranker
 // model should be interpreted/used.
 message RankerModelMetadata {
   // An identifier denoting the type or purpose of this model.
   optional string name = 1;
 
   // An identifier denoting the specific instance of this model. For example:
   // "Experiment B"
   optional string label = 2;
@@ skipping 16 matching lines @@
   optional int64 cache_duration_sec = 5;
 }
 
 // Defines an envelope/wrapper for general models.
 message RankerModelProto {
   // Metadata.
   optional RankerModelMetadata metadata = 1;
 
   oneof model { TranslateRankerModel translate = 2; }
 }