Brotli compression used on about credits html file.

chrome/browser/ui/webui/about_ui.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/ui/webui/about_ui.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 45 matching lines @@
 #include "content/public/common/process_type.h"
 #include "google_apis/gaia/google_service_auth_error.h"
 #include "grit/browser_resources.h"
 #include "grit/components_resources.h"
 #include "net/base/escape.h"
 #include "net/base/filename_util.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_response_headers.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_request_status.h"
+#include "third_party/brotli/dec/decode.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/webui/jstemplate_builder.h"
 #include "ui/base/webui/web_ui_util.h"
 #include "url/gurl.h"
 
 #if defined(ENABLE_THEMES)
 #include "chrome/browser/ui/webui/theme_source.h"
 #endif
 
@@ skipping 677 matching lines @@
     response = ChromeURLs();
   } else if (source_name_ == chrome::kChromeUICreditsHost) {
     int idr = IDR_ABOUT_UI_CREDITS_HTML;
     if (path == kCreditsJsPath)
       idr = IDR_ABOUT_UI_CREDITS_JS;
 #if defined(OS_CHROMEOS)
     else if (path == kKeyboardUtilsPath)
       idr = IDR_KEYBOARD_UTILS_JS;
 #endif
 
-    response = ResourceBundle::GetSharedInstance().GetRawDataResource(
-        idr).as_string();
+    base::StringPiece raw_response =
+        ResourceBundle::GetSharedInstance().GetRawDataResource(idr);
+    if (idr == IDR_ABOUT_UI_CREDITS_HTML) {
+      size_t decoded_size;
+      const uint8_t* encoded_response_buffer =
+          reinterpret_cast<const uint8_t*>(raw_response.data());
+      CHECK(BrotliDecompressedSize(raw_response.size(), encoded_response_buffer,
+                                   &decoded_size));
+
+      // Resizing the response and using it as the buffer Brotli decompresses
+      // into.
+      response.resize(decoded_size);
+      CHECK(BrotliDecompressBuffer(raw_response.size(), encoded_response_buffer,
+                                   &decoded_size,
+                                   reinterpret_cast<uint8_t*>(&response[0])) ==
+            BROTLI_RESULT_SUCCESS);
+    } else {
+      response = raw_response.as_string();
+    }
 #if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_CHROMEOS)
   } else if (source_name_ == chrome::kChromeUIDiscardsHost) {
     response = AboutDiscards(path);
 #endif
   } else if (source_name_ == chrome::kChromeUIDNSHost) {
     AboutDnsHandler::Start(profile(), callback);
     return;
 #if defined(OS_LINUX) || defined(OS_OPENBSD)
   } else if (source_name_ == chrome::kChromeUILinuxProxyConfigHost) {
     response = AboutLinuxProxyConfig();
@@ skipping 63 matching lines @@
   Profile* profile = Profile::FromWebUI(web_ui);
 
 #if defined(ENABLE_THEMES)
   // Set up the chrome://theme/ source.
   ThemeSource* theme = new ThemeSource(profile);
   content::URLDataSource::Add(profile, theme);
 #endif
 
   content::URLDataSource::Add(profile, new AboutUIHTMLSource(name, profile));
 }