Add mojom::DisplayController.

services/ui/display/platform_screen_ozone_unittests.cc

 // Copyright 2016 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 <memory>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "services/ui/display/platform_screen.h"
@@ skipping 61 matching lines @@
   std::vector<DisplayState> removed() { return removed_; }
   std::vector<DisplayState> modified() { return modified_; }
 
   void Reset() {
     added_.clear();
     removed_.clear();
     modified_.clear();
   }
 
  private:
-  void OnDisplayAdded(PlatformScreen* platform_screen,
-                      int64_t id,
-                      const gfx::Rect& bounds) override {
+  void OnDisplayAdded(int64_t id, const gfx::Rect& bounds) override {
     added_.push_back({id, bounds});
   }
 
   void OnDisplayRemoved(int64_t id) override {
     removed_.push_back({id, gfx::Rect()});
   }
 
   void OnDisplayModified(int64_t id, const gfx::Rect& bounds) override {
     modified_.push_back({id, bounds});
   }
@@ skipping 219 matching lines @@
   // Check that the default display was modified with a new size and display 2
   // was modified with a new origin.
   ASSERT_THAT(delegate()->modified(), SizeIs(2));
   EXPECT_THAT(delegate()->modified()[0], DisplayId(kDefaultDisplayId));
   EXPECT_THAT(delegate()->modified()[0], DisplaySize(size.ToString()));
   EXPECT_THAT(delegate()->modified()[1], DisplayId(2));
   EXPECT_THAT(delegate()->modified()[1], DisplayOrigin("1920,0"));
 }
 
 }  // namespace display