cros-md: Remove the non-MD immersive mode code paths

chrome/browser/ui/views/tabs/tab_strip_unittest.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_strip.h"
 
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/ui/layout_constants.h"
 #include "chrome/browser/ui/views/tabs/fake_base_tab_strip_controller.h"
@@ skipping 264 matching lines @@
   EXPECT_TRUE(tab_strip_->tab_at(invisible_tab_index - 1)->visible());
   EXPECT_FALSE(tab_strip_->tab_at(invisible_tab_index)->visible());
 
   // If we remove enough tabs, all the tabs should be visible.
   for (int i = tab_strip_->tab_count() - 1; i >= invisible_tab_index; --i)
     controller_->RemoveTab(i);
   EXPECT_TRUE(tab_strip_->tab_at(tab_strip_->tab_count() - 1)->visible());
 }
 
 TEST_F(TabStripTest, ImmersiveMode) {
-  // Immersive mode defaults to off.
-  EXPECT_FALSE(tab_strip_->IsImmersiveStyle());
-
   // Tab strip defaults to normal tab height.
   int normal_height = Tab::GetMinimumInactiveSize().height();
   EXPECT_EQ(normal_height, tab_strip_->GetPreferredSize().height());
 
-  // Tab strip can toggle immersive mode.
-  tab_strip_->SetImmersiveStyle(true);
-  EXPECT_TRUE(tab_strip_->IsImmersiveStyle());
+  // Tab strip can toggle immersive mode by setting to offscreen.
+  tab_strip_->set_offscreen(true);
 
-  // Now tabs have the immersive height.
-  int immersive_height = Tab::GetImmersiveHeight();
-  EXPECT_EQ(immersive_height, tab_strip_->GetPreferredSize().height());
-
-  // Sanity-check immersive tabs are shorter than normal tabs.
-  EXPECT_LT(immersive_height, normal_height);
+  // Now tabs have the height zero.
+  EXPECT_EQ(0, tab_strip_->GetPreferredSize().height());
 }
 
 // Creates a tab strip in stacked layout mode and verifies that as we move
 // across the strip at the top, middle, and bottom, events will target each tab
 // in order.
 TEST_F(TabStripTest, TabForEventWhenStacked) {
   tab_strip_->SetBounds(0, 0, 200, GetLayoutConstant(TAB_HEIGHT));
 
   controller_->AddTab(0, false);
   controller_->AddTab(1, true);
@@ skipping 246 matching lines @@
 
   // Change the title of the second tab (first tab is selected).
   tab_strip_->TabTitleChangedNotLoading(1);
   // Indicator should be shown.
   EXPECT_TRUE(IsShowingPinnedTabTitleChangedIndicator(1));
   // Select the second tab.
   controller_->SelectTab(1);
   // Indicator should hide.
   EXPECT_FALSE(IsShowingPinnedTabTitleChangedIndicator(1));
 }