Add ability to set resolution on external display

chrome/browser/chromeos/display/display_preferences_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 "chrome/browser/chromeos/display/display_preferences.h"
 
 #include "ash/display/display_controller.h"
 #include "ash/display/display_layout_store.h"
 #include "ash/display/display_manager.h"
 #include "ash/screen_ash.h"
@@ skipping 165 matching lines @@
   EXPECT_EQ("top, 20", GetRegisteredDisplayLayoutStr(id1, id2));
   EXPECT_EQ("left, 30", GetRegisteredDisplayLayoutStr(id1, dummy_id));
 }
 
 TEST_F(DisplayPreferencesTest, BasicStores) {
   ash::DisplayController* display_controller =
       ash::Shell::GetInstance()->display_controller();
   ash::internal::DisplayManager* display_manager =
       ash::Shell::GetInstance()->display_manager();
 
-  UpdateDisplay("200x200*2,200x200");
+  UpdateDisplay("300x200*2,400x300");
   int64 id1 = gfx::Screen::GetNativeScreen()->GetPrimaryDisplay().id();
   gfx::Display::SetInternalDisplayId(id1);
   int64 id2 = ash::ScreenAsh::GetSecondaryDisplay().id();
   int64 dummy_id = id2 + 1;
   ASSERT_NE(id1, dummy_id);
 
   LoggedInAsUser();
   ash::DisplayLayout layout(ash::DisplayLayout::TOP, 10);
   SetCurrentDisplayLayout(layout);
   StoreDisplayLayoutPrefForTest(
@@ skipping 27 matching lines @@
       local_state()->GetDictionary(prefs::kDisplayProperties);
   const base::DictionaryValue* property = NULL;
   EXPECT_TRUE(properties->GetDictionary(base::Int64ToString(id1), &property));
   int ui_scale = 0;
   int rotation = 0;
   EXPECT_TRUE(property->GetInteger("rotation", &rotation));
   EXPECT_TRUE(property->GetInteger("ui-scale", &ui_scale));
   EXPECT_EQ(1, rotation);
   EXPECT_EQ(1250, ui_scale);
 
+  int width = 0, height = 0;
+  EXPECT_FALSE(property->GetInteger("width", &width));
+  EXPECT_FALSE(property->GetInteger("height", &height));
+  
   int top = 0, left = 0, bottom = 0, right = 0;
   EXPECT_TRUE(property->GetInteger("insets_top", &top));
   EXPECT_TRUE(property->GetInteger("insets_left", &left));
   EXPECT_TRUE(property->GetInteger("insets_bottom", &bottom));
   EXPECT_TRUE(property->GetInteger("insets_right", &right));
   EXPECT_EQ(10, top);
   EXPECT_EQ(11, left);
   EXPECT_EQ(12, bottom);
   EXPECT_EQ(13, right);
 
@@ skipping 147 matching lines @@
   StoreDisplayPowerStateForTest(
       chromeos::DISPLAY_POWER_INTERNAL_OFF_EXTERNAL_ON);
   LoadDisplayPreferences(false);
   EXPECT_EQ(
       chromeos::DISPLAY_POWER_INTERNAL_OFF_EXTERNAL_ON,
       ash::Shell::GetInstance()->output_configurator()->power_state());
 }
 
 }  // namespace
 }  // namespace chromeos