Gzip compress chrome://accessibility resources

content/browser/accessibility/accessibility_ui.cc

 // Copyright (c) 2013 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 "content/browser/accessibility/accessibility_ui.h"
 
 #include <memory>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/json/json_writer.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "content/browser/accessibility/accessibility_tree_formatter.h"
 #include "content/browser/accessibility/accessibility_tree_formatter_blink.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/accessibility/browser_accessibility_state_impl.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
 #include "content/browser/web_contents/web_contents_impl.h"
+#include "content/browser/webui/web_ui_data_source_impl.h"
 #include "content/common/view_message_enums.h"
 #include "content/grit/content_resources.h"
 #include "content/public/browser/favicon_status.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/render_widget_host_iterator.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_ui_data_source.h"
@@ skipping 103 matching lines @@
   base::JSONWriter::Write(data, &json_string);
 
   callback.Run(base::RefCountedString::TakeString(&json_string));
   return true;
 }
 
 }  // namespace
 
 AccessibilityUI::AccessibilityUI(WebUI* web_ui) : WebUIController(web_ui) {
   // Set up the chrome://accessibility source.
-  WebUIDataSource* html_source =
-      WebUIDataSource::Create(kChromeUIAccessibilityHost);
+  WebUIDataSourceImpl* html_source = static_cast<WebUIDataSourceImpl*>(
+      WebUIDataSource::Create(kChromeUIAccessibilityHost));
 
   web_ui->RegisterMessageCallback(
       "toggleAccessibility",
       base::Bind(&AccessibilityUI::ToggleAccessibility,
                  base::Unretained(this)));
   web_ui->RegisterMessageCallback(
       "toggleGlobalAccessibility",
       base::Bind(&AccessibilityUI::ToggleGlobalAccessibility,
                  base::Unretained(this)));
   web_ui->RegisterMessageCallback(
       "toggleInternalTree",
       base::Bind(&AccessibilityUI::ToggleInternalTree,
                  base::Unretained(this)));
   web_ui->RegisterMessageCallback(
       "requestAccessibilityTree",
       base::Bind(&AccessibilityUI::RequestAccessibilityTree,
                  base::Unretained(this)));
 
   // Add required resources.
   html_source->SetJsonPath("strings.js");
   html_source->AddResourcePath("accessibility.css", IDR_ACCESSIBILITY_CSS);
   html_source->AddResourcePath("accessibility.js", IDR_ACCESSIBILITY_JS);
   html_source->SetDefaultResource(IDR_ACCESSIBILITY_HTML);
   html_source->SetRequestFilter(
       base::Bind(&HandleRequestCallback,
                  web_ui->GetWebContents()->GetBrowserContext()));
+  html_source->DisableI18nAndUseGzipForAllPaths();
+  html_source->ExcludePathFromGzip(kDataFile);
 
   BrowserContext* browser_context =
       web_ui->GetWebContents()->GetBrowserContext();
   WebUIDataSource::Add(browser_context, html_source);
 }
 
 AccessibilityUI::~AccessibilityUI() {}
 
 void AccessibilityUI::ToggleAccessibility(const base::ListValue* args) {
   std::string process_id_str;
@@ skipping 74 matching lines @@
       web_contents->GetRootBrowserAccessibilityManager()->GetRoot(),
       &accessibility_contents_utf16);
   result->Set("tree",
               new base::StringValue(
                   base::UTF16ToUTF8(accessibility_contents_utf16)));
   web_ui()->CallJavascriptFunctionUnsafe("accessibility.showTree",
                                          *(result.get()));
 }
 
 }  // namespace content