Revert of Remove some legacy versions of StartsWith and EndsWith.

chrome/browser/banners/app_banner_data_fetcher.cc

 // Copyright 2015 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/banners/app_banner_data_fetcher.h"
 
 #include "base/bind.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/banners/app_banner_debug_log.h"
@@ skipping 22 matching lines @@
 const char kPngExtension[] = ".png";
 
 // The requirement for now is an image/png that is at least 144x144.
 const int kIconMinimumSize = 144;
 bool DoesManifestContainRequiredIcon(const content::Manifest& manifest) {
   for (const auto& icon : manifest.icons) {
     // The type field is optional. If it isn't present, fall back on checking
     // the src extension, and allow the icon if the extension ends with png.
     if (!base::EqualsASCII(icon.type.string(), "image/png") &&
         !(icon.type.is_null() &&
-          base::EndsWith(icon.src.ExtractFileName(), kPngExtension,
-                         base::CompareCase::INSENSITIVE_ASCII)))
+          base::EndsWith(icon.src.ExtractFileName(), kPngExtension, false)))
       continue;
 
     for (const auto& size : icon.sizes) {
       if (size.IsEmpty()) // "any"
         return true;
       if (size.width() >= kIconMinimumSize && size.height() >= kIconMinimumSize)
         return true;
     }
   }
 
@@ skipping 373 matching lines @@
     return false;
   }
   if (!DoesManifestContainRequiredIcon(manifest)) {
     OutputDeveloperNotShownMessage(web_contents, kManifestMissingSuitableIcon);
     return false;
   }
   return true;
 }
 
 }  // namespace banners