Do not create a workspace for a maximized window.

chrome/browser/ui/views/tabs/tab_drag_controller_interactive_uitest.cc

 // 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/views/tabs/tab_drag_controller_interactive_uitest.h"
 
 #include "ash/wm/property_util.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
@@ skipping 1052 matching lines @@
                  native_browser_list)));
   QuitWhenNotDragging();
 
   ASSERT_FALSE(TabDragController::IsActive());
 
   // Should be two browsers.
   ASSERT_EQ(2u, native_browser_list->size());
   Browser* new_browser = native_browser_list->get(1);
   ASSERT_TRUE(new_browser->window()->IsActive());
 
-  // Only the new browser should be visible.
-  EXPECT_FALSE(browser()->window()->GetNativeWindow()->IsVisible());
+  EXPECT_TRUE(browser()->window()->GetNativeWindow()->IsVisible());
   EXPECT_TRUE(new_browser->window()->GetNativeWindow()->IsVisible());
 
   EXPECT_TRUE(GetTrackedByWorkspace(browser()));
   EXPECT_TRUE(GetTrackedByWorkspace(new_browser));
 
   // Both windows should be maximized
   EXPECT_TRUE(browser()->window()->IsMaximized());
   EXPECT_TRUE(new_browser->window()->IsMaximized());
 }
 
@@ skipping 547 matching lines @@
                         DifferentDeviceScaleFactorDisplayTabDragControllerTest,
                         ::testing::Values("mouse"));
 INSTANTIATE_TEST_CASE_P(TabDragging,
                         DetachToBrowserTabDragControllerTest,
                         ::testing::Values("mouse", "touch"));
 #else
 INSTANTIATE_TEST_CASE_P(TabDragging,
                         DetachToBrowserTabDragControllerTest,
                         ::testing::Values("mouse"));
 #endif