implementation for new duplicate download UI

chrome/browser/BUILD.gn

Index: chrome/browser/BUILD.gn
diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn
index 2d45cd4027358193598d8a55c9151e3056a7e517..74c463a61619f978badbf82316dc3529fb41c527 100644
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -3018,12 +3018,12 @@ split_static_library("browser") {
       "android/document/document_web_contents_delegate.cc",
       "android/dom_distiller/distiller_ui_handle_android.cc",
       "android/dom_distiller/distiller_ui_handle_android.h",
-      "android/download/android_download_manager_overwrite_infobar_delegate.cc",
-      "android/download/android_download_manager_overwrite_infobar_delegate.h",
+      "android/download/android_download_manager_duplicate_infobar_delegate.cc",
+      "android/download/android_download_manager_duplicate_infobar_delegate.h",
       "android/download/chrome_download_delegate.cc",
       "android/download/chrome_download_delegate.h",
-      "android/download/chrome_download_manager_overwrite_infobar_delegate.cc",
-      "android/download/chrome_download_manager_overwrite_infobar_delegate.h",
+      "android/download/chrome_duplicate_download_infobar_delegate.cc",
+      "android/download/chrome_duplicate_download_infobar_delegate.h",
       "android/download/dangerous_download_infobar_delegate.cc",
       "android/download/dangerous_download_infobar_delegate.h",
       "android/download/download_controller.cc",
@@ -3032,8 +3032,8 @@ split_static_library("browser") {
       "android/download/download_controller_base.h",
       "android/download/download_manager_service.cc",
       "android/download/download_manager_service.h",
-      "android/download/download_overwrite_infobar_delegate.cc",
-      "android/download/download_overwrite_infobar_delegate.h",
+      "android/download/duplicate_download_infobar_delegate.cc",
+      "android/download/duplicate_download_infobar_delegate.h",
       "android/download/mock_download_controller.cc",
       "android/download/mock_download_controller.h",
       "android/download/ui/thumbnail_provider.cc",
@@ -3884,7 +3884,7 @@ if (android_java_ui) {
       "../android/java/src/org/chromium/chrome/browser/infobar/AutofillSaveCardInfoBar.java",
       "../android/java/src/org/chromium/chrome/browser/infobar/ConfirmInfoBar.java",
       "../android/java/src/org/chromium/chrome/browser/infobar/DataReductionPromoInfoBarDelegate.java",
-      "../android/java/src/org/chromium/chrome/browser/infobar/DownloadOverwriteInfoBar.java",
+      "../android/java/src/org/chromium/chrome/browser/infobar/DuplicateDownloadInfoBar.java",
       "../android/java/src/org/chromium/chrome/browser/infobar/GeneratedPasswordSavedInfoBarDelegate.java",
       "../android/java/src/org/chromium/chrome/browser/infobar/GroupedPermissionInfoBar.java",
       "../android/java/src/org/chromium/chrome/browser/infobar/InfoBar.java",