Make the minimized home card not overlap activities on Athena

extensions/shell/browser/shell_desktop_controller.h

Index: extensions/shell/browser/shell_desktop_controller.h
diff --git a/extensions/shell/browser/shell_desktop_controller.h b/extensions/shell/browser/shell_desktop_controller.h
index afaef8ad5f2688fc99c4b008aa5b65dd1e0468d6..5d7dc764de210638bfc83fbe9e4993dcef33a7df 100644
--- a/extensions/shell/browser/shell_desktop_controller.h
+++ b/extensions/shell/browser/shell_desktop_controller.h
@@ -30,6 +30,7 @@ class BrowserContext;
 }
 
 namespace gfx {
+class Insets;
 class Size;
 }
 
@@ -85,6 +86,9 @@ class ShellDesktopController : public aura::client::WindowTreeClient,
   // Closes and destroys the app windows.
   void CloseAppWindows();
 
+  // Sets the screen's work area insets.
+  void SetDisplayWorkAreaInsets(const gfx::Insets& insets);
+
   // Overridden from aura::client::WindowTreeClient:
   virtual aura::Window* GetDefaultParent(aura::Window* context,
                                          aura::Window* window,