Handle more browser commands in ash.

ash/test/test_shell_delegate.cc

Index: ash/test/test_shell_delegate.cc
diff --git a/ash/test/test_shell_delegate.cc b/ash/test/test_shell_delegate.cc
index 60551b13f5612d1007b6de17705fb609012c19b3..82d98112e6894d49187ffcfbc50da1314f6b9246 100644
--- a/ash/test/test_shell_delegate.cc
+++ b/ash/test/test_shell_delegate.cc
@@ -45,6 +45,9 @@ void TestShellDelegate::Shutdown() {
 void TestShellDelegate::Exit() {
 }
 
+void TestShellDelegate::NewTab() {
+}
+
 void TestShellDelegate::NewWindow(bool incognito) {
 }
 
@@ -60,9 +63,15 @@ void TestShellDelegate::OpenCrosh() {
 void TestShellDelegate::OpenMobileSetup() {
 }
 
+void TestShellDelegate::RestoreTab() {
+}
+
 void TestShellDelegate::ShowKeyboardOverlay() {
 }
 
+void TestShellDelegate::ShowTaskManager() {
+}
+
 content::BrowserContext* TestShellDelegate::GetCurrentBrowserContext() {
   return new TestBrowserContext();
 }