Added HALF, FULLSCREEN_ALL_APPS, and FULLSCREEN_SEARCH.

ash/app_list/app_list_presenter_delegate.cc

Index: ash/app_list/app_list_presenter_delegate.cc
diff --git a/ash/app_list/app_list_presenter_delegate.cc b/ash/app_list/app_list_presenter_delegate.cc
index fc81a0ab465a3c04fea5fb455ba19c0594ed625a..8c56f0f8ecaf9c59b6250d30b34b83db12463a93 100644
--- a/ash/app_list/app_list_presenter_delegate.cc
+++ b/ash/app_list/app_list_presenter_delegate.cc
@@ -98,7 +98,8 @@ void AppListPresenterDelegate::Init(app_list::AppListView* view,
   aura::Window* container = RootWindowController::ForWindow(root_window)
                                 ->GetContainer(kShellWindowId_AppListContainer);
 
-  view->Initialize(container, current_apps_page);
+  view->Initialize(container, current_apps_page, IsMaximizeModeActive(),
+                   IsSideShelf());
 
   if (!app_list::features::IsFullscreenAppListEnabled()) {
     view->MaybeSetAnchorPoint(GetCenterOfDisplayForWindow(
@@ -166,6 +167,27 @@ gfx::Vector2d AppListPresenterDelegate::GetVisibilityAnimationOffset(
   return gfx::Vector2d();
 }
 
+bool AppListPresenterDelegate::IsMaximizeModeActive() const {
+  MaximizeModeController* maximize_mode_controller =
+      Shell::Get()->maximize_mode_controller();
+  return maximize_mode_controller &&
+         maximize_mode_controller->IsMaximizeModeWindowManagerEnabled();
+}
+
+bool AppListPresenterDelegate::IsSideShelf() const {
+  aura::Window* root_window =
+      RootWindowController::ForTargetRootWindow()->GetRootWindow();
+  Shelf* shelf = Shelf::ForWindow(root_window);
+  switch (shelf->alignment()) {
+    case SHELF_ALIGNMENT_BOTTOM:
+    case SHELF_ALIGNMENT_BOTTOM_LOCKED:
+      return false;
+    case SHELF_ALIGNMENT_LEFT:
+    case SHELF_ALIGNMENT_RIGHT:
+      return true;
+  }
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // AppListPresenterDelegate, private:
 
@@ -229,4 +251,18 @@ void AppListPresenterDelegate::OnOverviewModeStarting() {
     presenter_->Dismiss();
 }
 
+void AppListPresenterDelegate::OnMaximizeModeStarted() {
+  if (!app_list::features::IsFullscreenAppListEnabled())
+    return;
+
+  view_->OnMaximizeModeChanged(true);
+}
+
+void AppListPresenterDelegate::OnMaximizeModeEnded() {
+  if (!app_list::features::IsFullscreenAppListEnabled())
+    return;
+
+  view_->OnMaximizeModeChanged(false);
+}
+
 }  // namespace ash