Enhance chrome.app.window API with better shelf integration

chrome/browser/ui/ash/launcher/chrome_launcher_controller_browsertest.cc

Index: chrome/browser/ui/ash/launcher/chrome_launcher_controller_browsertest.cc
diff --git a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_browsertest.cc b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_browsertest.cc
index 057118dc8a2eacb50f522d1d79c84302611d937c..97ea5fa9ee7678f4fe2ca212b317b6c21252d62f 100644
--- a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_browsertest.cc
+++ b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_browsertest.cc
@@ -1492,6 +1492,96 @@ IN_PROC_BROWSER_TEST_F(LauncherPlatformAppBrowserTest, WindowAttentionStatus) {
   EXPECT_EQ(ash::STATUS_ACTIVE, item.status);
 }
 
+IN_PROC_BROWSER_TEST_F(LauncherPlatformAppBrowserTest, ShowInShelfWindows) {
+  ash::ShelfModel* shelf_model = ash::Shell::GetInstance()->shelf_model();
+
+  // Add a window with shelf True, close it
+  int item_count = shelf_model->item_count();
+  const Extension* extension = LoadAndLaunchPlatformApp("launch", "Launched");
+  AppWindow::CreateParams params;
+  params.show_in_shelf = true;
+  AppWindow* window1 =
+      CreateAppWindowFromParams(browser()->profile(), extension, params);
+  // There should be only 1 item added to the shelf.
+  EXPECT_EQ(item_count + 1, shelf_model->item_count());
+  CloseAppWindow(window1);
+  EXPECT_EQ(item_count, shelf_model->item_count());
+
+  // Add a window with false, following one with true
+  item_count = shelf_model->item_count();
+  extension = LoadAndLaunchPlatformApp("launch", "Launched");
+
+  params.show_in_shelf = false;
+  window1 = CreateAppWindowFromParams(browser()->profile(), extension, params);
+  EXPECT_EQ(item_count + 1, shelf_model->item_count());
+  params.show_in_shelf = true;
+  AppWindow* window2 =
+      CreateAppWindowFromParams(browser()->profile(), extension, params);
+  // There should be 2 items added to the shelf: although window1 has
+  // show_in_shelf set to false, it's the first window created so its icon must
+  // show up in shelf.
+  EXPECT_EQ(item_count + 2, shelf_model->item_count());
+  CloseAppWindow(window1);
+  EXPECT_EQ(item_count + 1, shelf_model->item_count());
+  CloseAppWindow(window2);
+  EXPECT_EQ(item_count, shelf_model->item_count());
+
+  // Open just one window with false
+  item_count = shelf_model->item_count();
+  extension = LoadAndLaunchPlatformApp("launch", "Launched");
+
+  params.show_in_shelf = false;
+  window1 = CreateAppWindowFromParams(browser()->profile(), extension, params);
+  // There should be 1 item added to the shelf: although show_in_shelf is false,
+  // this is the first window created.
+  EXPECT_EQ(item_count + 1, shelf_model->item_count());
+  CloseAppWindow(window1);
+  EXPECT_EQ(item_count, shelf_model->item_count());
+
+  // Add a window with true, following one with false
+  item_count = shelf_model->item_count();
+  extension = LoadAndLaunchPlatformApp("launch", "Launched");
+
+  params.show_in_shelf = true;
+  window1 = CreateAppWindowFromParams(browser()->profile(), extension, params);
+  EXPECT_EQ(item_count + 1, shelf_model->item_count()); // main window
+  params.show_in_shelf = false;
+  window2 = CreateAppWindowFromParams(browser()->profile(), extension, params);
+  EXPECT_EQ(item_count + 1, shelf_model->item_count());
+  // There should be 1 item added to the shelf as the second window
+  // is set to show_in_shelf false

[stevenjb, 2016/05/03 20:39:49]

This comment should be above the EXPECT

[Andra Paraschiv, 2016/05/04 11:59:09]

Done.

+  CloseAppWindow(window1);
+  EXPECT_EQ(item_count + 1, shelf_model->item_count());
+  CloseAppWindow(window2);
+  EXPECT_EQ(item_count, shelf_model->item_count());
+
+  // Test closing windows in different order
+  item_count = shelf_model->item_count();
+
+  extension = LoadAndLaunchPlatformApp("launch", "Launched");
+  params.show_in_shelf = false;
+  window1 = CreateAppWindowFromParams(browser()->profile(), extension, params);
+  params.show_in_shelf = false;
+  window2 = CreateAppWindowFromParams(browser()->profile(), extension, params);
+  params.show_in_shelf = true;
+  AppWindow* window3 =
+      CreateAppWindowFromParams(browser()->profile(), extension, params);
+  params.show_in_shelf = true;
+  AppWindow* window4 =
+      CreateAppWindowFromParams(browser()->profile(), extension, params);
+  // There should be 3 items added to the shelf.
+  EXPECT_EQ(item_count + 3, shelf_model->item_count());

[stevenjb, 2016/05/03 20:39:49]

I think we should have an EXPECT for each Create here also.

[Andra Paraschiv, 2016/05/04 11:59:09]

Done.

+  // Any window close order should be valid
+  CloseAppWindow(window4);
+  EXPECT_EQ(item_count + 2, shelf_model->item_count());

[stevenjb, 2016/05/03 20:39:48]

I also think each of these merits an explanation since the behavior is not
entirely trivial.

[Andra Paraschiv, 2016/05/04 11:59:09]

Done.

+  CloseAppWindow(window1);
+  EXPECT_EQ(item_count + 2, shelf_model->item_count());
+  CloseAppWindow(window3);
+  EXPECT_EQ(item_count + 1, shelf_model->item_count());
+  CloseAppWindow(window2);
+  EXPECT_EQ(item_count, shelf_model->item_count());
+}
+
 // Checks that the browser Alt "tabbing" is properly done.
 IN_PROC_BROWSER_TEST_F(ShelfAppBrowserTestNoDefaultBrowser,
                        AltNumberBrowserTabbing) {