Zero-sized windows are bad. Don't.

BUG=78973
TEST=as in bug.

Review URL: http://codereview.chromium.org/7129048

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@88638 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/cocoa/status_bubble_mac.mm

@@ -352,7 +352,7 @@ void StatusBubbleMac::UpdateDownloadShelfVisibility(bool visible) {
 void StatusBubbleMac::Create() {
   DCHECK(!window_);
 
-  window_ = [[NSWindow alloc] initWithContentRect:NSZeroRect
+  window_ = [[NSWindow alloc] initWithContentRect:NSMakeRect(0, 0, 1, 1)
                                         styleMask:NSBorderlessWindowMask
                                           backing:NSBackingStoreBuffered
                                             defer:YES];
@@ -436,7 +436,7 @@ void StatusBubbleMac::SetState(StatusBubbleState state) {
     return;
 
   if (state == kBubbleHidden)
-    [window_ setFrame:NSZeroRect display:YES];
+    [window_ setFrame:NSMakeRect(0, 0, 1, 1) display:YES];
 
   if ([delegate_ respondsToSelector:@selector(statusBubbleWillEnterState:)])
     [delegate_ statusBubbleWillEnterState:state];