Avoid parsing the webstore base url so much.

extensions/test/test_extensions_client.cc

 // Copyright 2014 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 "extensions/test/test_extensions_client.h"
 
 #include "base/stl_util.h"
 #include "extensions/common/api/generated_schemas.h"
 #include "extensions/common/common_manifest_handlers.h"
 #include "extensions/common/extension_urls.h"
@@ skipping 20 matching lines @@
 namespace {
 
 template <class FeatureClass>
 SimpleFeature* CreateFeature() {
   return new FeatureClass;
 }
 
 }  // namespace
 
 TestExtensionsClient::TestExtensionsClient()
-    : webstore_update_url_(extension_urls::kChromeWebstoreUpdateURL) {}
+    : webstore_base_url_(extension_urls::kChromeWebstoreBaseURL),
+      webstore_update_url_(extension_urls::kChromeWebstoreUpdateURL) {}
 
 TestExtensionsClient::~TestExtensionsClient() {
 }
 
 void TestExtensionsClient::AddBrowserImagePathsFilter(
     BrowserImagePathsFilter* filter) {
   browser_image_filters_.insert(filter);
 }
 
 void TestExtensionsClient::RemoveBrowserImagePathsFilter(
@@ skipping 88 matching lines @@
   return api::GeneratedSchemas::Get(name);
 }
 
 bool TestExtensionsClient::ShouldSuppressFatalErrors() const {
   return true;
 }
 
 void TestExtensionsClient::RecordDidSuppressFatalError() {
 }
 
-std::string TestExtensionsClient::GetWebstoreBaseURL() const {
-  return extension_urls::kChromeWebstoreBaseURL;
+const GURL& TestExtensionsClient::GetWebstoreBaseURL() const {
+  return webstore_base_url_;
 }
 
 const GURL& TestExtensionsClient::GetWebstoreUpdateURL() const {
   return webstore_update_url_;
 }
 
 bool TestExtensionsClient::IsBlacklistUpdateURL(const GURL& url) const {
   return false;
 }
 
 std::set<base::FilePath> TestExtensionsClient::GetBrowserImagePaths(
     const Extension* extension) {
   std::set<base::FilePath> result =
       ExtensionsClient::GetBrowserImagePaths(extension);
   for (auto* filter : browser_image_filters_)
     filter->Filter(extension, &result);
   return result;
 }
 
 }  // namespace extensions