Make profiling lock global rather than per Target

Source/devtools/front_end/sdk/Target.js

Index: Source/devtools/front_end/sdk/Target.js
diff --git a/Source/devtools/front_end/sdk/Target.js b/Source/devtools/front_end/sdk/Target.js
index 1b781d8b96d2741d82400d76817216d0601dbd35..86a19b18a2e07cf5c6e123a1602129f0a2500326 100644
--- a/Source/devtools/front_end/sdk/Target.js
+++ b/Source/devtools/front_end/sdk/Target.js
@@ -32,9 +32,6 @@ WebInspector.Target = function(name, connection, callback)
     this.workerAgent().canInspectWorkers(this._initializeCapability.bind(this, WebInspector.Target.Capabilities.CanInspectWorkers, this._loadedWithCapabilities.bind(this, callback)));
     if (WebInspector.experimentsSettings.timelineOnTraceEvents.isEnabled())
         this.consoleAgent().setTracingBasedTimeline(true);
-
-    /** @type {!WebInspector.Lock} */
-    this.profilingLock = new WebInspector.Lock();
 }
 
 /**
@@ -433,3 +430,6 @@ WebInspector.TargetManager.Observer.prototype = {
  * @type {!WebInspector.TargetManager}
  */
 WebInspector.targetManager = new WebInspector.TargetManager();
+
+/** @type {!WebInspector.Lock} */
+WebInspector.profilingLock = new WebInspector.Lock();

[sergeyv, 2014/08/14 15:43:10]

In my opinion it is not appropriate place to declare and initialize it. 
Lets create Lock.js, move WebInspector.Lock from Object.js to there and put
these strings there

[yurys, 2014/08/14 15:54:10]

Yeah, I was thinking about it too. Done.