[DevTools] Turn TracingManager into SDKModel.

third_party/WebKit/Source/devtools/front_end/sdk/Target.js

 /*
  * Copyright 2014 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.
  */
 
 /**
  * @unrestricted
  */
 SDK.Target = class extends Protocol.TargetBase {
@@ skipping 175 matching lines @@
  * @enum {number}
  */
 SDK.Target.Capability = {
   Browser: 1,
   DOM: 2,
   JS: 4,
   Log: 8,
   Network: 16,
   Target: 32,
   ScreenCapture: 64,
+  Tracing: 128,

[caseq, 2017/03/01 02:28:06]

nit: these could perhaps be better written as (1 << 7) etc. to emphasize it's a
bit mask.

[dgozman, 2017/03/01 20:32:17]

Done.

 
   None: 0,
 
-  AllForTests: 127
+  AllForTests: 255
 };
 
 /**
  * @unrestricted
  */
 SDK.SDKObject = class extends Common.Object {
   /**
    * @param {!SDK.Target} target
    */
   constructor(target) {
@@ skipping 44 matching lines @@
  * @param {number} capabilities
  */
 SDK.SDKModel.register = function(modelClass, capabilities) {
   if (!SDK.SDKModel._capabilitiesByModelClass)
     SDK.SDKModel._capabilitiesByModelClass = new Map();
   SDK.SDKModel._capabilitiesByModelClass.set(modelClass, capabilities);
 };
 
 /** @type {!Map<function(new:SDK.SDKModel, !SDK.Target), number>} */
 SDK.SDKModel._capabilitiesByModelClass;