[DevTools] reveal debugger sidebar on pause

third_party/WebKit/Source/devtools/front_end/sources/SourcesPanel.js

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
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   }
 
   /**
    * @param {!SDK.DebuggerPausedDetails} details
    */
   _showDebuggerPausedDetails(details) {
     this._paused = true;
     this._updateDebuggerButtonsAndStatus();
     UI.context.setFlavor(SDK.DebuggerPausedDetails, details);
     this._toggleDebuggerSidebarButton.setEnabled(false);
+    this._revealDebuggerSidebar();
     window.focus();
     InspectorFrontendHost.bringToFront();
   }
 
   /**
    * @param {!Common.Event} event
    */
   _debuggerResumed(event) {
     var debuggerModel = /** @type {!SDK.DebuggerModel} */ (event.target);
     var target = debuggerModel.target();
@@ skipping 999 matching lines @@
    */
   willHide() {
     UI.inspectorView.setDrawerMinimized(false);
     setImmediate(() => Sources.SourcesPanel.updateResizerAndSidebarButtons(Sources.SourcesPanel.instance()));
   }
 
   _showViewInWrapper() {
     this._view.show(this.element);
   }
 };