Fix docked browser window sometimes appears onscreen after restart

chrome/browser/ui/cocoa/browser_window_controller.mm

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
 
 #include <cmath>
 #include <numeric>
 
 #include "base/command_line.h"
@@ skipping 709 matching lines @@
 // saved user size. (It is possible for the two to coincide.) In this way, the
 // zoom button acts as a toggle. We determine the standard size based on the
 // content, but enforce a minimum width (calculated using the dimensions of the
 // screen) to ensure websites with small intrinsic width (such as google.com)
 // don't end up with a wee window. Moreover, we always declare the standard
 // width to be at least as big as the current width, i.e., we never want zooming
 // to the standard width to shrink the window. This is consistent with other
 // browsers' behaviour, and is desirable in multi-tab situations. Note, however,
 // that the "toggle" behaviour means that the window can still be "unzoomed" to
 // the user size.
+// Note: this method is also called from -isZoomed. If the returned zoomed rect
+// equals the current window's frame, -isZoomed returns YES.
 - (NSRect)windowWillUseStandardFrame:(NSWindow*)window
                         defaultFrame:(NSRect)frame {
   // Forget that we grew the window up (if we in fact did).
   [self resetWindowGrowthState];
 
   // |frame| already fills the current screen. Never touch y and height since we
   // always want to fill vertically.
 
   // If the shift key is down, maximize. Hopefully this should make the
   // "switchers" happy.
@@ skipping 1464 matching lines @@
 
 - (BOOL)supportsBookmarkBar {
   return [self supportsWindowFeature:Browser::FEATURE_BOOKMARKBAR];
 }
 
 - (BOOL)isTabbedWindow {
   return browser_->is_type_tabbed();
 }
 
 @end  // @implementation BrowserWindowController(WindowType)