arc: Support non-standard display scale factors.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_unittest.cc

 // Copyright 2013 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/ui/ash/launcher/chrome_launcher_controller.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <map>
@@ skipping 2286 matching lines @@
 
   // Register fake ARC apps.
   SendListOfArcApps();
   // Use first fake ARC app for testing.
   const std::string arc_app_id = ArcAppTest::GetAppId(arc_test_.fake_apps()[0]);
 
   // Generate icon for the testing app and use compressed png content as test
   // input.
   std::string png_data;
   EXPECT_TRUE(arc_test_.app_instance()->GenerateAndSendIcon(
-      arc_test_.fake_apps()[0], arc::mojom::ScaleFactor::SCALE_FACTOR_300P,
+      arc_test_.fake_apps()[0], arc::mojom::ScaleFactor::SCALE_FACTOR_100P,
       &png_data));
   EXPECT_FALSE(png_data.empty());
   // Some input that represents invalid png content.
   std::string invalid_png_data("aaaaaa");
 
   EXPECT_FALSE(launcher_controller_->GetItem(ash::ShelfID(arc_app_id)));
   std::string window_app_id1("org.chromium.arc.1");
   std::string window_app_id2("org.chromium.arc.2");
   views::Widget* window1 = CreateArcWindow(window_app_id1);
   ASSERT_TRUE(window1 && window1->GetNativeWindow());
@@ skipping 1967 matching lines @@
   EXPECT_EQ(ash::SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS,
             shelf_controller->auto_hide());
   EXPECT_EQ(2u, shelf_controller->auto_hide_change_count());
 
   PrefService* prefs = profile()->GetTestingPrefService();
   EXPECT_EQ("Left", prefs->GetString(prefs::kShelfAlignmentLocal));
   EXPECT_EQ("Left", prefs->GetString(prefs::kShelfAlignment));
   EXPECT_EQ("Always", prefs->GetString(prefs::kShelfAutoHideBehaviorLocal));
   EXPECT_EQ("Always", prefs->GetString(prefs::kShelfAutoHideBehavior));
 }