Fix docked browser window sometimes appears onscreen after restart

chrome/browser/ui/cocoa/browser_window_cocoa_unittest.mm

 // Copyright (c) 2011 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 "base/mac/scoped_nsobject.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_util.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/fullscreen.h"
 #include "chrome/browser/ui/bookmarks/bookmark_utils.h"
@@ skipping 30 matching lines @@
       new BrowserWindowCocoa(browser(), controller_));
 
   bool before = bwc->IsBookmarkBarVisible();
   chrome::ToggleBookmarkBarWhenVisible(profile());
   EXPECT_NE(before, bwc->IsBookmarkBarVisible());
 
   chrome::ToggleBookmarkBarWhenVisible(profile());
   EXPECT_EQ(before, bwc->IsBookmarkBarVisible());
 }
 
+// Test that IsMaximized() returns false when the browser window goes from
+// maximized to minimized state - http://crbug/452976.
+TEST_F(BrowserWindowCocoaTest, TestMinimizeState) {
+  scoped_ptr<BrowserWindowCocoa> bwc(
+      new BrowserWindowCocoa(browser(), controller_));
+
+  EXPECT_FALSE(bwc->IsMinimized());
+  bwc->Maximize();
+  EXPECT_TRUE(bwc->IsMaximized());
+  EXPECT_FALSE(bwc->IsMinimized());
+  bwc->Minimize();
+  EXPECT_FALSE(bwc->IsMaximized());
+  EXPECT_TRUE(bwc->IsMinimized());
+  bwc->Restore();
+  EXPECT_TRUE(bwc->IsMaximized());
+  EXPECT_FALSE(bwc->IsMinimized());
+}
+
 // Tests that BrowserWindowCocoa::Close mimics the behavior of
 // -[NSWindow performClose:].
 class BrowserWindowCocoaCloseTest : public CocoaProfileTest {
  public:
   BrowserWindowCocoaCloseTest()
       : controller_(
             [OCMockObject mockForClass:[BrowserWindowController class]]),
         window_([OCMockObject mockForClass:[NSWindow class]]) {
     [[[controller_ stub] andReturn:nil] overlayWindow];
   }
@@ skipping 101 matching lines @@
   [[[window_ stub] andReturn:nil] delegate];
   [[[controller_ stub] andReturn:window_] window];
   [[window_ expect] orderOut:nil];
   [[window_ expect] close];
   CreateAndCloseBrowserWindow();
   EXPECT_OCMOCK_VERIFY(controller_);
   EXPECT_OCMOCK_VERIFY(window_);
 }
 
 // TODO(???): test other methods of BrowserWindowCocoa