Mac: Show a context menu for poup window.

chrome/app/nibs/BrowserWindow.xib

 <?xml version="1.0" encoding="UTF-8"?>
 <archive type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="7.10">
         <data>
                 <int key="IBDocument.SystemTarget">1050</int>
                 <string key="IBDocument.SystemVersion">10F569</string>
                 <string key="IBDocument.InterfaceBuilderVersion">788</string>
                 <string key="IBDocument.AppKitVersion">1038.29</string>
                 <string key="IBDocument.HIToolboxVersion">461.00</string>
                 <object class="NSMutableDictionary" key="IBDocument.PluginVersions">
                         <string key="NS.key.0">com.apple.InterfaceBuilder.CocoaPlugin</string>
@@ skipping 87 matching lines @@
                                 </object>
                                 <string key="NSFrameSize">{483, 36}</string>
                                 <string key="NSClassName">TabStripView</string>
                         </object>
                         <object class="NSCustomView" id="529166964">
                                 <nil key="NSNextResponder"/>
                                 <int key="NSvFlags">272</int>
                                 <string key="NSFrameSize">{236, 393}</string>
                                 <string key="NSClassName">SideTabStripView</string>
                         </object>
+                        <object class="NSCustomView" id="212980309">
+                                <nil key="NSNextResponder"/>
+                                <int key="NSvFlags">266</int>
+                                <string key="NSFrameSize">{0, 0}</string>
+                                <string key="NSClassName">PopupStripView</string>
+                        </object>
                 </object>
                 <object class="IBObjectContainer" key="IBDocument.Objects">
                         <object class="NSMutableArray" key="connectionRecords">
                                 <bool key="EncodedWithXMLCoder">YES</bool>
                                 <object class="IBConnectionRecord">
                                         <object class="IBOutletConnection" key="connection">
                                                 <string key="label">window</string>
                                                 <reference key="source" ref="1001"/>
                                                 <reference key="destination" ref="1005"/>
                                         </object>
@@ skipping 32 matching lines @@
                                         <int key="connectionID">88</int>
                                 </object>
                                 <object class="IBConnectionRecord">
                                         <object class="IBOutletConnection" key="connection">
                                                 <string key="label">sideTabStripView_</string>
                                                 <reference key="source" ref="1001"/>
                                                 <reference key="destination" ref="529166964"/>
                                         </object>
                                         <int key="connectionID">90</int>
                                 </object>
+                                <object class="IBConnectionRecord">
+                                        <object class="IBOutletConnection" key="connection">
+                                                <string key="label">popupStripView_</string>
+                                                <reference key="source" ref="1001"/>
+                                                <reference key="destination" ref="212980309"/>
+                                        </object>
+                                        <int key="connectionID">92</int>
+                                </object>
                         </object>
                         <object class="IBMutableOrderedSet" key="objectRecords">
                                 <object class="NSArray" key="orderedObjects">
                                         <bool key="EncodedWithXMLCoder">YES</bool>
                                         <object class="IBObjectRecord">
                                                 <int key="objectID">0</int>
                                                 <reference key="object" ref="0"/>
                                                 <reference key="children" ref="1000"/>
                                                 <nil key="parent"/>
                                         </object>
@@ skipping 61 matching lines @@
                                         <object class="IBObjectRecord">
                                                 <int key="objectID">84</int>
                                                 <reference key="object" ref="1858870"/>
                                                 <reference key="parent" ref="1006"/>
                                         </object>
                                         <object class="IBObjectRecord">
                                                 <int key="objectID">89</int>
                                                 <reference key="object" ref="529166964"/>
                                                 <reference key="parent" ref="0"/>
                                         </object>
+                                        <object class="IBObjectRecord">
+                                                <int key="objectID">91</int>
+                                                <reference key="object" ref="212980309"/>
+                                                <reference key="parent" ref="0"/>
+                                        </object>
                                 </object>
                         </object>
                         <object class="NSMutableDictionary" key="flattenedProperties">
                                 <bool key="EncodedWithXMLCoder">YES</bool>
                                 <object class="NSArray" key="dict.sortedKeys">
                                         <bool key="EncodedWithXMLCoder">YES</bool>
                                         <string>-1.IBPluginDependency</string>
                                         <string>-2.IBPluginDependency</string>
                                         <string>-3.IBPluginDependency</string>
                                         <string>1.IBEditorWindowLastContentRect</string>
@@ skipping 10 matching lines @@
                                         <string>2.IBViewIntegration.shadowOffsetHeight</string>
                                         <string>2.IBViewIntegration.shadowOffsetWidth</string>
                                         <string>56.IBEditorWindowLastContentRect</string>
                                         <string>56.IBPluginDependency</string>
                                         <string>66.CustomClassName</string>
                                         <string>66.IBPluginDependency</string>
                                         <string>67.IBPluginDependency</string>
                                         <string>84.IBPluginDependency</string>
                                         <string>89.IBEditorWindowLastContentRect</string>
                                         <string>89.IBPluginDependency</string>
+                                        <string>91.IBPluginDependency</string>
                                 </object>
                                 <object class="NSMutableArray" key="dict.values">
                                         <bool key="EncodedWithXMLCoder">YES</bool>
                                         <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
                                         <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
                                         <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
                                         <string>{{267, 167}, {750, 600}}</string>
                                         <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
                                         <string>{{267, 167}, {750, 600}}</string>
                                         <boolean value="NO"/>
@@ skipping 10 matching lines @@
                                         <real value="0.0"/>
                                         <real value="0.0"/>
                                         <string>{{138, 199}, {483, 36}}</string>
                                         <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
                                         <string>NewTabButton</string>
                                         <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
                                         <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
                                         <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
                                         <string>{{89, 611}, {236, 393}}</string>
                                         <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
+                                        <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
                                 </object>
                         </object>
                         <object class="NSMutableDictionary" key="unlocalizedProperties">
                                 <bool key="EncodedWithXMLCoder">YES</bool>
                                 <reference key="dict.sortedKeys" ref="0"/>
                                 <object class="NSMutableArray" key="dict.values">
                                         <bool key="EncodedWithXMLCoder">YES</bool>
                                 </object>
                         </object>
                         <nil key="activeLocalization"/>
                         <object class="NSMutableDictionary" key="localizations">
                                 <bool key="EncodedWithXMLCoder">YES</bool>
                                 <reference key="dict.sortedKeys" ref="0"/>
                                 <object class="NSMutableArray" key="dict.values">
                                         <bool key="EncodedWithXMLCoder">YES</bool>
                                 </object>
                         </object>
                         <nil key="sourceID"/>
-                        <int key="maxID">90</int>
+                        <int key="maxID">92</int>
                 </object>
                 <object class="IBClassDescriber" key="IBDocument.Classes">
                         <object class="NSMutableArray" key="referencedPartialClassDescriptions">
                                 <bool key="EncodedWithXMLCoder">YES</bool>
                                 <object class="IBPartialClassDescription">
                                         <string key="className">BrowserWindowController</string>
                                         <string key="superclassName">TabWindowController</string>
                                         <object class="IBClassDescriptionSource" key="sourceIdentifier">
                                                 <string key="majorKey">IBProjectSource</string>
                                                 <string key="minorKey">browser/cocoa/browser_window_controller.h</string>
@@ skipping 97 matching lines @@
                                 </object>
                                 <object class="IBPartialClassDescription">
                                         <string key="className">NewTabButton</string>
                                         <string key="superclassName">NSButton</string>
                                         <object class="IBClassDescriptionSource" key="sourceIdentifier">
                                                 <string key="majorKey">IBProjectSource</string>
                                                 <string key="minorKey">browser/cocoa/new_tab_button.h</string>
                                         </object>
                                 </object>
                                 <object class="IBPartialClassDescription">
+                                        <string key="className">PopupStripView</string>
+                                        <string key="superclassName">NSView</string>
+                                        <object class="IBClassDescriptionSource" key="sourceIdentifier">
+                                                <string key="majorKey">IBUserSource</string>
+                                                <string key="minorKey"/>
+                                        </object>
+                                </object>
+                                <object class="IBPartialClassDescription">
                                         <string key="className">SideTabStripView</string>
                                         <string key="superclassName">TabStripView</string>
                                         <object class="IBClassDescriptionSource" key="sourceIdentifier">
                                                 <string key="majorKey">IBProjectSource</string>
                                                 <string key="minorKey">browser/cocoa/side_tab_strip_view.h</string>
                                         </object>
                                 </object>
                                 <object class="IBPartialClassDescription">
                                         <string key="className">TabStripView</string>
                                         <string key="superclassName">NSView</string>
@@ skipping 13 matching lines @@
                                                 <string key="minorKey">browser/cocoa/tab_strip_view.h</string>
                                         </object>
                                 </object>
                                 <object class="IBPartialClassDescription">
                                         <string key="className">TabWindowController</string>
                                         <string key="superclassName">NSWindowController</string>
                                         <object class="NSMutableDictionary" key="outlets">
                                                 <bool key="EncodedWithXMLCoder">YES</bool>
                                                 <object class="NSArray" key="dict.sortedKeys">
                                                         <bool key="EncodedWithXMLCoder">YES</bool>
+                                                        <string>popupStripView_</string>
                                                         <string>sideTabStripView_</string>
                                                         <string>tabContentArea_</string>
                                                         <string>topTabStripView_</string>
                                                 </object>
                                                 <object class="NSMutableArray" key="dict.values">
                                                         <bool key="EncodedWithXMLCoder">YES</bool>
+                                                        <string>PopupStripView</string>
                                                         <string>TabStripView</string>
                                                         <string>FastResizeView</string>
                                                         <string>TabStripView</string>
                                                 </object>
                                         </object>
                                         <object class="NSMutableDictionary" key="toOneOutletInfosByName">
                                                 <bool key="EncodedWithXMLCoder">YES</bool>
                                                 <object class="NSArray" key="dict.sortedKeys">
                                                         <bool key="EncodedWithXMLCoder">YES</bool>
+                                                        <string>popupStripView_</string>
                                                         <string>sideTabStripView_</string>
                                                         <string>tabContentArea_</string>
                                                         <string>topTabStripView_</string>
                                                 </object>
                                                 <object class="NSMutableArray" key="dict.values">
                                                         <bool key="EncodedWithXMLCoder">YES</bool>
                                                         <object class="IBToOneOutletInfo">
+                                                                <string key="name">popupStripView_</string>
+                                                                <string key="candidateClassName">PopupStripView</string>
+                                                        </object>
+                                                        <object class="IBToOneOutletInfo">
                                                                 <string key="name">sideTabStripView_</string>
                                                                 <string key="candidateClassName">TabStripView</string>
                                                         </object>
                                                         <object class="IBToOneOutletInfo">
                                                                 <string key="name">tabContentArea_</string>
                                                                 <string key="candidateClassName">FastResizeView</string>
                                                         </object>
                                                         <object class="IBToOneOutletInfo">
                                                                 <string key="name">topTabStripView_</string>
                                                                 <string key="candidateClassName">TabStripView</string>
@@ skipping 19 matching lines @@
                 </object>
                 <object class="NSMutableDictionary" key="IBDocument.PluginDeclaredDevelopmentDependencies">
                         <string key="NS.key.0">com.apple.InterfaceBuilder.CocoaPlugin.InterfaceBuilder3</string>
                         <integer value="3000" key="NS.object.0"/>
                 </object>
                 <bool key="IBDocument.PluginDeclaredDependenciesTrackSystemTargetVersion">YES</bool>
                 <string key="IBDocument.LastKnownRelativeProjectPath">../../chrome.xcodeproj</string>
                 <int key="IBDocument.defaultPropertyAccessControl">3</int>
         </data>
 </archive>