Fix docked browser window sometimes appears onscreen after restart

chrome/browser/ui/cocoa/browser_window_cocoa.mm

 // Copyright (c) 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.
 
 #include "chrome/browser/ui/cocoa/browser_window_cocoa.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #import "base/mac/sdk_forward_declarations.h"
@@ skipping 345 matching lines @@
   if (IsMinimized())
     return ui::SHOW_STATE_MINIMIZED;
   return ui::SHOW_STATE_NORMAL;
 }
 
 gfx::Rect BrowserWindowCocoa::GetBounds() const {
   return GetRestoredBounds();
 }
 
 bool BrowserWindowCocoa::IsMaximized() const {
-  return [window() isZoomed];
+  // -isZoomed returns YES if the window's frame equals the rect returned by
+  // -windowWillUseStandardFrame:defaultFrame:, even if the window is in the
+  // dock, so have to explicitly check for miniaturization state first.
+  return ![window() isMiniaturized] && [window() isZoomed];
 }
 
 bool BrowserWindowCocoa::IsMinimized() const {
   return [window() isMiniaturized];
 }
 
 void BrowserWindowCocoa::Maximize() {
   // Zoom toggles so only call if not already maximized.
   if (!IsMaximized())
     [window() zoom:controller_];
@@ skipping 454 matching lines @@
 void BrowserWindowCocoa::UnhideDownloadShelf() {
   GetDownloadShelf()->Unhide();
 }
 
 void BrowserWindowCocoa::HideDownloadShelf() {
   GetDownloadShelf()->Hide();
   StatusBubble* statusBubble = GetStatusBubble();
   if (statusBubble)
     statusBubble->Hide();
 }