Fix the problem that notifications and panels overlap.

chrome/browser/ui/panels/base_panel_browser_test.h

Index: chrome/browser/ui/panels/base_panel_browser_test.h
diff --git a/chrome/browser/ui/panels/base_panel_browser_test.h b/chrome/browser/ui/panels/base_panel_browser_test.h
index 42cf7e0cf42141ee97c4057a1ab5a34a82dafa71..a833706d2dac80a0afd91df9cc9a935418417feb 100644
--- a/chrome/browser/ui/panels/base_panel_browser_test.h
+++ b/chrome/browser/ui/panels/base_panel_browser_test.h
@@ -58,6 +58,8 @@ class BasePanelBrowserTest : public InProcessBrowserTest {
                                const gfx::Rect& bounds);
   Panel* CreatePanel(const std::string& panel_name);
 
+  void WaitForPanelAdded(Panel* panel);
+  void WaitForPanelRemoved(Panel* panel);
   void WaitForPanelActiveState(Panel* panel, ActiveState state);
   void WaitForWindowSizeAvailable(Panel* panel);
   void WaitForBoundsAnimationFinished(Panel* panel);
@@ -69,6 +71,9 @@ class BasePanelBrowserTest : public InProcessBrowserTest {
                                            const DictionaryValue& extra_value);
 
   gfx::Rect testing_work_area() const { return testing_work_area_; }
+  void set_testing_work_area(const gfx::Rect& work_area) {
+    testing_work_area_ = work_area;
+  }
 
   MockAutoHidingDesktopBar* mock_auto_hiding_desktop_bar() const {
     return mock_auto_hiding_desktop_bar_.get();