Add facitility for Global Keyboard shortcuts.

chrome/app/nibs/en.lproj/BrowserWindow.xib

Index: chrome/app/nibs/en.lproj/BrowserWindow.xib
diff --git a/chrome/app/nibs/en.lproj/BrowserWindow.xib b/chrome/app/nibs/en.lproj/BrowserWindow.xib
index 306c83d1d24aecd889e20737e2e2b32d4d437c21..a1c9d0fe27456ec879cde2fe527d02195d1a54f0 100644
--- a/chrome/app/nibs/en.lproj/BrowserWindow.xib
+++ b/chrome/app/nibs/en.lproj/BrowserWindow.xib
@@ -8,8 +8,8 @@
 		<string key="IBDocument.HIToolboxVersion">353.00</string>
 		<object class="NSMutableArray" key="IBDocument.EditedObjectIDs">
 			<bool key="EncodedWithXMLCoder">YES</bool>
-			<integer value="1"/>
 			<integer value="56"/>
+			<integer value="1"/>
 		</object>
 		<object class="NSArray" key="IBDocument.PluginDependencies">
 			<bool key="EncodedWithXMLCoder">YES</bool>
@@ -41,7 +41,7 @@
 				<string key="NSWindowRect">{{60, 229}, {750, 600}}</string>
 				<int key="NSWTFlags">536872960</int>
 				<string key="NSWindowTitle"/>
-				<string key="NSWindowClass">NSWindow</string>
+				<string key="NSWindowClass">ChromeBrowserWindowImpl</string>
 				<nil key="NSViewClass"/>
 				<string key="NSWindowContentMaxSize">{3.40282e+38, 3.40282e+38}</string>
 				<string key="NSWindowContentMinSize">{400, 250}</string>
@@ -307,6 +307,14 @@
 					</object>
 				</object>
 				<object class="IBPartialClassDescription">
+					<string key="className">ChromeBrowserWindowImpl</string>
+					<string key="superclassName">NSWindow</string>
+					<object class="IBClassDescriptionSource" key="sourceIdentifier">
+						<string key="majorKey">IBProjectSource</string>
+						<string key="minorKey">browser/cocoa/browser_window_impl.h</string>
+					</object>
+				</object>
+				<object class="IBPartialClassDescription">
 					<string key="className">FirstResponder</string>
 					<string key="superclassName">NSObject</string>
 					<object class="NSMutableDictionary" key="actions">