[DevTools] Support BreakReason.OOM

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

 // Copyright 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.
 /**
  * @unrestricted
  */
 Sources.DebuggerPausedMessage = class {
   constructor() {
     this._element = createElementWithClass('div', 'paused-message flex-none');
     var root = UI.createShadowRootWithCoreStyles(this._element, 'sources/debuggerPausedMessage.css');
@@ skipping 33 matching lines @@
       var descriptionFirstLine = description.split('\n', 1)[0];
       messageWrapper = buildWrapper(Common.UIString('Paused on exception'), descriptionFirstLine, description);
     } else if (details.reason === SDK.DebuggerModel.BreakReason.PromiseRejection) {
       var description = details.auxData['description'] || details.auxData['value'] || '';
       var descriptionFirstLine = description.split('\n', 1)[0];
       messageWrapper = buildWrapper(Common.UIString('Paused on promise rejection'), descriptionFirstLine, description);
     } else if (details.reason === SDK.DebuggerModel.BreakReason.Assert) {
       messageWrapper = buildWrapper(Common.UIString('Paused on assertion'));
     } else if (details.reason === SDK.DebuggerModel.BreakReason.DebugCommand) {
       messageWrapper = buildWrapper(Common.UIString('Paused on debugged function'));
+    } else if (details.reason === SDK.DebuggerModel.BreakReason.OOM) {
+      messageWrapper = buildWrapper(Common.UIString('Paused before potential out-of-memory crash'));
     } else if (details.callFrames.length) {
       var uiLocation = debuggerWorkspaceBinding.rawLocationToUILocation(details.callFrames[0].location());
       var breakpoint = uiLocation ?
           breakpointManager.findBreakpoint(uiLocation.uiSourceCode, uiLocation.lineNumber, uiLocation.columnNumber) :
           null;
       var defaultText = breakpoint ? Common.UIString('Paused on breakpoint') : Common.UIString('Debugger paused');
       messageWrapper = buildWrapper(defaultText);
     } else {
       console.warn(
           'ScriptsPanel paused, but callFrames.length is zero.');  // TODO remove this once we understand this case better
     }
 
     var errorLike = details.reason === SDK.DebuggerModel.BreakReason.Exception ||
         details.reason === SDK.DebuggerModel.BreakReason.PromiseRejection ||
-        details.reason === SDK.DebuggerModel.BreakReason.Assert;
+        details.reason === SDK.DebuggerModel.BreakReason.Assert || details.reason === SDK.DebuggerModel.BreakReason.OOM;
     status.classList.toggle('error-reason', errorLike);
     if (messageWrapper)
       status.appendChild(messageWrapper);
 
     /**
      * @param  {string} mainText
      * @param  {string=} subText
      * @param  {string=} title
      * @return {!Element}
      */
     function buildWrapper(mainText, subText, title) {
       var messageWrapper = createElement('span');
       var mainElement = messageWrapper.createChild('div', 'status-main');
       mainElement.appendChild(UI.Icon.create('smallicon-info', 'status-icon'));
       mainElement.appendChild(createTextNode(mainText));
       if (subText) {
         var subElement = messageWrapper.createChild('div', 'status-sub monospace');
         subElement.textContent = subText;
       }
       if (title)
         messageWrapper.title = title;
       return messageWrapper;
     }
   }
 };