Fix code around display overscan settings.

ash/display/multi_display_manager_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/display/multi_display_manager.h"
 
 #include "ash/display/display_controller.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "base/format_macros.h"
@@ skipping 209 matching lines @@
 }
 
 TEST_F(MultiDisplayManagerTest, MAYBE_OverscanInsetsTest) {
   UpdateDisplay("0+0-500x500,0+501-400x400");
   reset();
   ASSERT_EQ(2u, display_manager()->GetNumDisplays());
   gfx::Display display1(*display_manager()->GetDisplayAt(0));
   gfx::Display display2(*display_manager()->GetDisplayAt(1));
 
   display_manager()->SetOverscanInsets(
-      display2.id(), gfx::Insets(10, 11, 12, 13));
+      display2.id(), gfx::Insets(13, 12, 11, 10));
   std::vector<gfx::Display> changed_displays = changed();
   EXPECT_EQ(1u, changed_displays.size());
   EXPECT_EQ(display2.id(), changed_displays[0].id());
   EXPECT_EQ("0,0 500x500",
             display_manager()->GetDisplayAt(0)->bounds_in_pixel().ToString());
+  EXPECT_EQ("12,514 378x376",
+            display_manager()->GetDisplayAt(1)->bounds_in_pixel().ToString());
+
+  display_manager()->SetOverscanInsets(
+      display2.id(), gfx::Insets(10, 11, 12, 13));
+  EXPECT_EQ("0,0 500x500",
+            display_manager()->GetDisplayAt(0)->bounds_in_pixel().ToString());
   EXPECT_EQ("11,511 376x378",
             display_manager()->GetDisplayAt(1)->bounds_in_pixel().ToString());
 
   // Recreate a new 2nd display. It won't apply the overscan inset because the
   // new display has a different ID.
   UpdateDisplay("0+0-500x500");
   UpdateDisplay("0+0-500x500,0+501-400x400");
   EXPECT_EQ("0,0 500x500",
             display_manager()->GetDisplayAt(0)->bounds_in_pixel().ToString());
   EXPECT_EQ("0,501 400x400",
@@ skipping 106 matching lines @@
   // External display has disconnected then resumed.
   displays.push_back(native_display);
   display_manager()->OnNativeDisplaysChanged(displays);
   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
   EXPECT_EQ("0,0 500x500",
             FindDisplayForId(internal_display_id).bounds().ToString());
 }
 
 }  // namespace internal
 }  // namespace ash