Hide the tab indicators and the shelf when in immersive + tab fullscreen

ash/shelf/shelf_layout_manager.cc

Index: ash/shelf/shelf_layout_manager.cc
diff --git a/ash/shelf/shelf_layout_manager.cc b/ash/shelf/shelf_layout_manager.cc
index 977655f815fdd609fbda6d240a7130c1f4f239ea..fa4e47f6cacd2dd97af023d20769a9fb2bd8eed3 100644
--- a/ash/shelf/shelf_layout_manager.cc
+++ b/ash/shelf/shelf_layout_manager.cc
@@ -19,6 +19,7 @@
 #include "ash/system/status_area_widget.h"
 #include "ash/wm/property_util.h"
 #include "ash/wm/window_cycle_controller.h"
+#include "ash/wm/window_properties.h"
 #include "ash/wm/window_util.h"
 #include "ash/wm/workspace_controller.h"
 #include "ash/wm/workspace/workspace_animations.h"
@@ -276,18 +277,21 @@ void ShelfLayoutManager::UpdateVisibilityState() {
     // TODO(zelidrag): Verify shelf drag animation still shows on the device
     // when we are in SHELF_AUTO_HIDE_ALWAYS_HIDDEN.
     SetState(CalculateShelfVisibilityWhileDragging());
-  } else if (GetRootWindowController(root_window_)->IsImmersiveMode()) {
-    // The user choosing immersive mode indicates he or she wants to maximize
-    // screen real-estate for content, so always auto-hide the shelf.
-    DCHECK_NE(auto_hide_behavior_, SHELF_AUTO_HIDE_ALWAYS_HIDDEN);
-    SetState(SHELF_AUTO_HIDE);
   } else {
     WorkspaceWindowState window_state(workspace_controller_->GetWindowState());
     switch (window_state) {
       case WORKSPACE_WINDOW_STATE_FULL_SCREEN:
-        SetState(SHELF_HIDDEN);
+      {
+        aura::Window* fullscreen_window =
+            GetRootWindowController(root_window_)->GetFullscreenWindow();
+        if (fullscreen_window->GetProperty(kFullscreenUsesMinimalChromeKey)) {
+          DCHECK_NE(auto_hide_behavior_, SHELF_AUTO_HIDE_ALWAYS_HIDDEN);
+          SetState(SHELF_AUTO_HIDE);
+        } else {
+          SetState(SHELF_HIDDEN);
+        }
         break;
-
+      }
       case WORKSPACE_WINDOW_STATE_MAXIMIZED:
         SetState(CalculateShelfVisibility());
         break;