MD Settings: fix help/ redirection to only happen on chrome://help

chrome/browser/chrome_content_browser_client.cc

 // Copyright (c) 2012 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/chrome_content_browser_client.h"
 
 #include <map>
 #include <set>
 #include <utility>
 #include <vector>
@@ skipping 627 matching lines @@
     return false;
 
   *url = GURL(ntp_location);
   return true;
 }
 
 // Handles rewriting Web UI URLs.
 bool HandleWebUI(GURL* url, content::BrowserContext* browser_context) {
   if (base::FeatureList::IsEnabled(features::kMaterialDesignSettings)) {
     // Rewrite chrome://help and chrome://chrome to chrome://settings/help.
-    if (url->host() == chrome::kChromeUIHelpHost ||
-        (url->host() == chrome::kChromeUIUberHost &&
-         (url->path().empty() || url->path() == "/"))) {
+    if (url->SchemeIs(content::kChromeUIScheme) &&
+        (url->host() == chrome::kChromeUIHelpHost ||
+         (url->host() == chrome::kChromeUIUberHost &&
+          (url->path().empty() || url->path() == "/")))) {
       *url = ReplaceURLHostAndPath(*url, chrome::kChromeUISettingsHost,
                                    chrome::kChromeUIHelpHost);
       return true;  // Return true to update the displayed URL.
     }
   }
 
   // Do not handle special URLs such as "about:foo"
   if (!url->host().empty()) {
     const GURL chrome_url = AddUberHost(*url);
 
@@ skipping 24 matching lines @@
 
   return true;
 }
 
 // Reverse URL handler for Web UI. Maps "chrome://chrome/foo/" to
 // "chrome://foo/".
 bool HandleWebUIReverse(GURL* url, content::BrowserContext* browser_context) {
   // No need to actually reverse-rewrite the URL, but return true to update the
   // displayed URL when rewriting chrome://help to chrome://settings/help.
   if (base::FeatureList::IsEnabled(features::kMaterialDesignSettings) &&
+      url->SchemeIs(content::kChromeUIScheme) &&
       url->host() == chrome::kChromeUISettingsHost) {
     return true;
   }
 
   if (!url->is_valid() || !url->SchemeIs(content::kChromeUIScheme))
     return false;
 
   return RemoveUberHost(url);
 }
 
@@ skipping 2875 matching lines @@
     RedirectNonUINonIOBrowserThreadsToTaskScheduler() {
   return variations::GetVariationParamValue(
              "BrowserScheduler", "RedirectNonUINonIOBrowserThreads") == "true";
 }
 
 // static
 void ChromeContentBrowserClient::SetDefaultQuotaSettingsForTesting(
     const storage::QuotaSettings* settings) {
   g_default_quota_settings = settings;
 }