Add IsInternal property to gfx::Display

ash/accelerators/accelerator_controller_unittest.cc

Index: ash/accelerators/accelerator_controller_unittest.cc
diff --git a/ash/accelerators/accelerator_controller_unittest.cc b/ash/accelerators/accelerator_controller_unittest.cc
index 5de157c28fbc52c2510d017c9f0ac5d79d65edae..92e66a360471bcb77030c381f6f4c487f8986b1e 100644
--- a/ash/accelerators/accelerator_controller_unittest.cc
+++ b/ash/accelerators/accelerator_controller_unittest.cc
@@ -317,6 +317,10 @@ class AcceleratorControllerTest : public test::AshTestBase {
         SetFirstDisplayAsInternalDisplayForTest();
   }
 
+  void DisableInternalDisplay() {

[oshima, 2013/02/12 17:38:51]

It's better to reset in AshTestBase::TearDown,
and you probably don't need a method.

[ynovikov, 2013/02/12 21:17:47]

Done.

+    Shell::GetInstance()->display_manager()->ResetInternalDisplayForTest();
+  }
+
   static AcceleratorController* GetController();
   static bool ProcessWithContext(const ui::Accelerator& accelerator);
 
@@ -891,6 +895,7 @@ TEST_F(AcceleratorControllerTest, GlobalAccelerators) {
   // effect of locking the screen.
   EXPECT_TRUE(ProcessWithContext(
       ui::Accelerator(ui::VKEY_L, ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN)));
+  DisableInternalDisplay();
 #endif
 }
 
@@ -1239,6 +1244,7 @@ TEST_F(AcceleratorControllerTest, DisallowedAtModalWindow) {
     EXPECT_EQ(1, delegate->handle_volume_up_count());
     EXPECT_EQ(volume_up, delegate->last_accelerator());
   }
+  DisableInternalDisplay();
 }
 #endif