mac: Don't reference nav.pdf from TabView.xib

chrome/app/nibs/TabView.xib

Index: chrome/app/nibs/TabView.xib
diff --git a/chrome/app/nibs/TabView.xib b/chrome/app/nibs/TabView.xib
index 1e6800c739f899acd201106b17e5f1136c180129..f752dd274eb0a6e2392558c03d6645418d4168fa 100644
--- a/chrome/app/nibs/TabView.xib
+++ b/chrome/app/nibs/TabView.xib
@@ -2,13 +2,13 @@
 <archive type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="7.10">
 	<data>
 		<int key="IBDocument.SystemTarget">1050</int>
-		<string key="IBDocument.SystemVersion">10K540</string>
-		<string key="IBDocument.InterfaceBuilderVersion">804</string>
+		<string key="IBDocument.SystemVersion">10K549</string>
+		<string key="IBDocument.InterfaceBuilderVersion">851</string>
 		<string key="IBDocument.AppKitVersion">1038.36</string>
 		<string key="IBDocument.HIToolboxVersion">461.00</string>
 		<object class="NSMutableDictionary" key="IBDocument.PluginVersions">
 			<string key="NS.key.0">com.apple.InterfaceBuilder.CocoaPlugin</string>
-			<string key="NS.object.0">804</string>
+			<string key="NS.object.0">851</string>
 		</object>
 		<object class="NSMutableArray" key="IBDocument.EditedObjectIDs">
 			<bool key="EncodedWithXMLCoder">YES</bool>
@@ -64,10 +64,6 @@
 						<object class="NSImageCell" key="NSCell" id="1061639670">
 							<int key="NSCellFlags">537001472</int>
 							<int key="NSCellFlags2">33587200</int>
-							<object class="NSCustomResource" key="NSContents">
-								<string key="NSClassName">NSImage</string>
-								<string key="NSResourceName">nav</string>
-							</object>
 							<int key="NSAlign">0</int>
 							<int key="NSScale">2</int>
 							<int key="NSStyle">0</int>
@@ -1270,9 +1266,5 @@
 		<bool key="IBDocument.PluginDeclaredDependenciesTrackSystemTargetVersion">YES</bool>
 		<string key="IBDocument.LastKnownRelativeProjectPath">../../chrome.xcodeproj</string>
 		<int key="IBDocument.defaultPropertyAccessControl">3</int>
-		<object class="NSMutableDictionary" key="IBDocument.LastKnownImageSizes">
-			<string key="NS.key.0">nav</string>
-			<string key="NS.object.0">{16, 16}</string>
-		</object>
 	</data>
 </archive>