Special case the gallery to not show the scary download roadblock.

chrome/browser/extensions/extensions_service.cc

 // Copyright (c) 2009 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/extensions/extensions_service.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/histogram.h"
 #include "base/string_util.h"
@@ skipping 50 matching lines @@
   std::set<std::string> extensions_;
 };
 
 } // namespace
 
 // ExtensionsService.
 
 const char* ExtensionsService::kInstallDirectoryName = "Extensions";
 const char* ExtensionsService::kCurrentVersionFileName = "Current Version";
 
-const char* ExtensionsService::kGalleryDownloadURLPrefix =
-    "https://dl-ssl.google.com/chrome/";
-const char* ExtensionsService::kGalleryURLPrefix =
-    "https://tools.google.com/chrome/";
-
 // static
 bool ExtensionsService::IsDownloadFromGallery(const GURL& download_url,
                                               const GURL& referrer_url) {
-  if (StartsWithASCII(download_url.spec(), kGalleryDownloadURLPrefix, false) &&
-      StartsWithASCII(referrer_url.spec(), kGalleryURLPrefix, false)) {
+  if (StartsWithASCII(download_url.spec(),
+                      extension_urls::kMiniGalleryDownloadPrefix, false) &&
+      StartsWithASCII(referrer_url.spec(),
+                      extension_urls::kMiniGalleryBrowsePrefix, false)) {
     return true;
-  } else {
-    return false;
   }
+
+  if (StartsWithASCII(download_url.spec(),
+                      extension_urls::kGalleryDownloadPrefix, false) &&
+      StartsWithASCII(referrer_url.spec(),
+                      extension_urls::kGalleryBrowsePrefix, false)) {
+    return true;
+  }
+
+  return false;
 }
 
 ExtensionsService::ExtensionsService(Profile* profile,
                                      const CommandLine* command_line,
                                      PrefService* prefs,
                                      const FilePath& install_directory,
                                      bool autoupdate_enabled)
     : profile_(profile),
       extension_prefs_(new ExtensionPrefs(prefs, install_directory)),
       install_directory_(install_directory),
@@ skipping 856 matching lines @@
 
 void ExtensionsServiceBackend::OnExternalExtensionFound(
     const std::string& id, const Version* version, const FilePath& path,
     Extension::Location location) {
   ChromeThread::PostTask(
       ChromeThread::UI, FROM_HERE,
       NewRunnableMethod(
           frontend_, &ExtensionsService::OnExternalExtensionFound, id,
           version->GetString(), path, location));
 }