Make DisplayInfoProvider an interface

chrome/browser/extensions/display_info_provider_impl_win.cc

Index: chrome/browser/extensions/display_info_provider_impl_win.cc
diff --git a/chrome/browser/extensions/api/system_display/display_info_provider_win.cc b/chrome/browser/extensions/display_info_provider_impl_win.cc
similarity index 91%
rename from chrome/browser/extensions/api/system_display/display_info_provider_win.cc
rename to chrome/browser/extensions/display_info_provider_impl_win.cc
index 83869217ed3a91cea82eaaafc808f67183c6fc41..fdd16a362a8ed614325eb1255c92dfe20311dd45 100644
--- a/chrome/browser/extensions/api/system_display/display_info_provider_win.cc
+++ b/chrome/browser/extensions/display_info_provider_impl_win.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/extensions/api/system_display/display_info_provider.h"
+#include "chrome/browser/extensions/display_info_provider_impl.h"
 
 #include <windows.h>
 
@@ -51,14 +51,14 @@ BOOL CALLBACK EnumMonitorCallback(HMONITOR monitor,
 
 }  // namespace
 
-bool DisplayInfoProvider::SetInfo(const std::string& display_id,
+bool DisplayInfoProviderImpl::SetInfo(const std::string& display_id,
     const api::system_display::DisplayProperties& info,
     std::string* error) {
   *error = "Not implemented";
   return false;
 }
 
-void DisplayInfoProvider::UpdateDisplayUnitInfoForPlatform(
+void DisplayInfoProviderImpl::UpdateDisplayUnitInfoForPlatform(
     const gfx::Display& display,
     extensions::api::system_display::DisplayUnitInfo* unit) {
   DisplayInfo all_displays;