Support auto-hide taskbar for panels on Windows.

chrome/browser/ui/panels/panel_browser_view_browsertest.cc

Index: chrome/browser/ui/panels/panel_browser_view_browsertest.cc
===================================================================
--- chrome/browser/ui/panels/panel_browser_view_browsertest.cc	(revision 96619)
+++ chrome/browser/ui/panels/panel_browser_view_browsertest.cc	(working copy)
@@ -200,7 +200,22 @@
   // We put all the testing logic in this class instead of the test so that
   // we do not need to declare each new test as a friend of PanelBrowserView
   // for the purpose of accessing its private members.
-  void TestMinimizeAndRestore() {
+  void TestMinimizeAndRestore(int auto_hide_bottom_bar_height) {
+    PanelManager* panel_manager = PanelManager::GetInstance();
+
+    // Specify the work area for testing purpose.
+    const int kTestWorkAreaWidth = 800;
+    const int kTestWorkAreaHeight = 600;
+    panel_manager->SetWorkArea(
+        gfx::Rect(0, 0, kTestWorkAreaWidth, kTestWorkAreaHeight),
+        auto_hide_bottom_bar_height);
+    panel_manager->should_check_auto_hide_bottom_bar_on_titlebar_change_ =
+        false;
+    int expected_bottom_on_unminimized =
+        kTestWorkAreaHeight - auto_hide_bottom_bar_height;
+    int expected_bottom_on_minimized = kTestWorkAreaHeight;
+
+    // Create and test one panel first.
     PanelBrowserView* browser_view1 = CreatePanelBrowserView("PanelTest1",
                                                              SHOW_AS_ACTIVE);
     Panel* panel1 = browser_view1->panel_.get();
@@ -216,6 +231,7 @@
     EXPECT_EQ(Panel::MINIMIZED, panel1->expansion_state());
     EXPECT_LT(panel1->GetBounds().height(), titlebar_height);
     EXPECT_GT(panel1->GetBounds().height(), 0);
+    EXPECT_EQ(expected_bottom_on_minimized, panel1->GetBounds().bottom());
     EXPECT_TRUE(IsMouseWatcherStarted());
     EXPECT_FALSE(panel1->IsActive());
     WaitTillBoundsAnimationFinished(browser_view1);
@@ -228,6 +244,7 @@
     panel1->SetExpansionState(Panel::TITLE_ONLY);
     EXPECT_EQ(Panel::TITLE_ONLY, panel1->expansion_state());
     EXPECT_EQ(titlebar_height, panel1->GetBounds().height());
+    EXPECT_EQ(expected_bottom_on_unminimized, panel1->GetBounds().bottom());
     WaitTillBoundsAnimationFinished(browser_view1);
     EXPECT_TRUE(frame_view1->close_button_->IsVisible());
     EXPECT_TRUE(frame_view1->title_icon_->IsVisible());
@@ -236,6 +253,7 @@
     panel1->SetExpansionState(Panel::EXPANDED);
     EXPECT_EQ(Panel::EXPANDED, panel1->expansion_state());
     EXPECT_EQ(initial_height, panel1->GetBounds().height());
+    EXPECT_EQ(expected_bottom_on_unminimized, panel1->GetBounds().bottom());
     WaitTillBoundsAnimationFinished(browser_view1);
     EXPECT_TRUE(frame_view1->close_button_->IsVisible());
     EXPECT_TRUE(frame_view1->title_icon_->IsVisible());
@@ -244,11 +262,13 @@
     panel1->SetExpansionState(Panel::TITLE_ONLY);
     EXPECT_EQ(Panel::TITLE_ONLY, panel1->expansion_state());
     EXPECT_EQ(titlebar_height, panel1->GetBounds().height());
+    EXPECT_EQ(expected_bottom_on_unminimized, panel1->GetBounds().bottom());
 
     panel1->SetExpansionState(Panel::MINIMIZED);
     EXPECT_EQ(Panel::MINIMIZED, panel1->expansion_state());
     EXPECT_LT(panel1->GetBounds().height(), titlebar_height);
     EXPECT_GT(panel1->GetBounds().height(), 0);
+    EXPECT_EQ(expected_bottom_on_minimized, panel1->GetBounds().bottom());
 
     // Create 2 more panels for more testing.
     PanelBrowserView* browser_view2 = CreatePanelBrowserView("PanelTest2",
@@ -264,14 +284,12 @@
     panel3->SetExpansionState(Panel::MINIMIZED);
     EXPECT_EQ(Panel::MINIMIZED, panel3->expansion_state());
 
-    PanelManager* panel_manager = PanelManager::GetInstance();
-
-    panel_manager->BringUpOrDownTitleBarForAllMinimizedPanels(true);
+    panel_manager->BringUpTitleBar();
     EXPECT_EQ(Panel::TITLE_ONLY, panel1->expansion_state());
     EXPECT_EQ(Panel::EXPANDED, panel2->expansion_state());
     EXPECT_EQ(Panel::TITLE_ONLY, panel3->expansion_state());
 
-    panel_manager->BringUpOrDownTitleBarForAllMinimizedPanels(false);
+    panel_manager->BringDownTitleBar();
     EXPECT_EQ(Panel::MINIMIZED, panel1->expansion_state());
     EXPECT_EQ(Panel::EXPANDED, panel2->expansion_state());
     EXPECT_EQ(Panel::MINIMIZED, panel3->expansion_state());
@@ -342,8 +360,7 @@
             panel->GetBounds().x(), panel->GetBounds().y()));
 
     // Test that we cannot bring down the panel that is drawing the attention.
-    PanelManager::GetInstance()->BringUpOrDownTitleBarForAllMinimizedPanels(
-        false);
+    PanelManager::GetInstance()->BringDownTitleBar();
     EXPECT_EQ(Panel::TITLE_ONLY, panel->expansion_state());
 
     // Test that the attention is cleared.
@@ -487,10 +504,18 @@
       "http://home", "options.html");
 }
 
-IN_PROC_BROWSER_TEST_F(PanelBrowserViewTest, MinimizeAndRestore) {
-  TestMinimizeAndRestore();
+IN_PROC_BROWSER_TEST_F(PanelBrowserViewTest,
+                       MinimizeAndRestoreOnNormalTaskBar) {
+  // Test that the taskbar is always visible.
+  TestMinimizeAndRestore(0);
 }
 
+IN_PROC_BROWSER_TEST_F(PanelBrowserViewTest,
+                       MinimizeAndRestoreOnAutoHideTaskBar) {
+  // Test that the taskbar is in auto-hide mode.
+  TestMinimizeAndRestore(40);
+}
+
 IN_PROC_BROWSER_TEST_F(PanelBrowserViewTest, DrawAttention) {
   TestDrawAttention();
 }