DevTools: move the GC button into the memory panel.

third_party/WebKit/Source/devtools/front_end/profiler/ProfilesPanel.js

 /*
  * Copyright (C) 2008 Apple 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 413 matching lines @@
     var toolbar = new UI.Toolbar('', toolbarContainerLeft);
 
     this._toggleRecordAction =
         /** @type {!UI.Action }*/ (UI.actionRegistry.action('profiler.toggle-recording'));
     this._toggleRecordButton = UI.Toolbar.createActionButton(this._toggleRecordAction);
     toolbar.appendToolbarItem(this._toggleRecordButton);
 
     this.clearResultsButton = new UI.ToolbarButton(Common.UIString('Clear all profiles'), 'largeicon-clear');
     this.clearResultsButton.addEventListener('click', this._reset, this);
     toolbar.appendToolbarItem(this.clearResultsButton);
+    toolbar.appendSeparator();
+    toolbar.appendToolbarItem(
+        /** @type {!UI.ToolbarItem} */ (UI.Toolbar.createActionButtonForId('profiler.collect-garbage')));
 
     this._profileTypeToolbar = new UI.Toolbar('', this._toolbarElement);
     this._profileViewToolbar = new UI.Toolbar('', this._toolbarElement);
 
     this._profileGroups = {};
     this._launcherView = new Profiler.MultiProfileLauncherView(this);
     this._launcherView.addEventListener(
         Profiler.MultiProfileLauncherView.Events.ProfileTypeSelected, this._onProfileTypeSelected, this);
 
     this._profileToView = [];
@@ skipping 809 matching lines @@
    * @param {string} actionId
    * @return {boolean}
    */
   handleAction(context, actionId) {
     var panel = UI.context.flavor(Profiler.ProfilesPanel);
     console.assert(panel && panel instanceof Profiler.ProfilesPanel);
     panel.toggleRecord();
     return true;
   }
 };
+
+/**
+ * @implements {UI.ActionDelegate}
+ * @unrestricted
+ */
+Profiler.ProfilesPanel.GCActionDelegate = class {
+  /**
+   * @override
+   * @param {!UI.Context} context
+   * @param {string} actionId
+   * @return {boolean}
+   */
+  handleAction(context, actionId) {
+    for (var target of SDK.targetManager.targets())
+      target.heapProfilerAgent().collectGarbage();
+    return true;
+  }
+};