Fix issue where cmd-w was hard-coded to closing a browser tab regardless of t...

chrome/browser/cocoa/tab_strip_controller.mm

Index: chrome/browser/cocoa/tab_strip_controller.mm
===================================================================
--- chrome/browser/cocoa/tab_strip_controller.mm	(revision 16871)
+++ chrome/browser/cocoa/tab_strip_controller.mm	(working copy)
@@ -22,6 +22,8 @@
 #include "chrome/browser/tabs/tab_strip_model.h"
 #include "grit/generated_resources.h"
 
+NSString* const kTabStripNumberOfTabsChanged = @"kTabStripNumberOfTabsChanged";
+
 // A simple view class that prevents the windowserver from dragging the
 // area behind tabs. Sometimes core animation confuses it.
 @interface TabStripControllerDragBlockingView : NSView
@@ -337,6 +339,11 @@
   if (!inForeground) {
     [self layoutTabs];
   }
+  
+  // Send a broadcast that the number of tabs have changed.
+  [[NSNotificationCenter defaultCenter]
+      postNotificationName:kTabStripNumberOfTabsChanged
+                    object:self];
 }
 
 // Called when a notification is received from the model to select a particular
@@ -397,6 +404,11 @@
   // Once we're totally done with the tab, delete its controller
   [tabArray_ removeObjectAtIndex:index];
 
+  // Send a broadcast that the number of tabs have changed.
+  [[NSNotificationCenter defaultCenter]
+      postNotificationName:kTabStripNumberOfTabsChanged
+                    object:self];
+
   [self layoutTabs];
 }