Store and load icudtl.dat directly from the apk rather than extracting on start-up

chrome/browser/chrome_content_browser_client.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROME_CONTENT_BROWSER_CLIENT_H_
 #define CHROME_BROWSER_CHROME_CONTENT_BROWSER_CLIENT_H_
 
 #include <set>
 #include <string>
 #include <utility>
@@ skipping 225 matching lines @@
       content::BrowserContext* browser_context,
       const GURL& url) override;
   void OverridePageVisibilityState(
       content::RenderFrameHost* render_frame_host,
       blink::WebPageVisibilityState* visibility_state) override;
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
   void GetAdditionalMappedFilesForChildProcess(
       const base::CommandLine& command_line,
       int child_process_id,
-      content::FileDescriptorInfo* mappings) override;
+      content::FileDescriptorInfo* mappings
+#if defined(OS_ANDROID)
+      ,
+      std::map<int, base::MemoryMappedFile::Region>* regions
+#endif
+      ) override;
 #endif
 #if defined(OS_WIN)
   const wchar_t* GetResourceDllName() override;
   void PreSpawnRenderer(sandbox::TargetPolicy* policy, bool* success) override;
 #endif
   void OverrideRenderFrameMojoServices(
       content::ServiceRegistry* registry,
       content::RenderFrameHost* render_frame_host) override;
   void OpenURL(content::BrowserContext* browser_context,
                const content::OpenURLParams& params,
@@ skipping 41 matching lines @@
   std::set<std::string> allowed_file_handle_origins_;
   // Set of origins that can use "dev chanel" APIs from NaCl, even on stable
   // versions of Chrome.
   std::set<std::string> allowed_dev_channel_origins_;
 #endif
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
   base::ScopedFD v8_natives_fd_;
   base::ScopedFD v8_snapshot_fd_;
 #endif  // OS_POSIX && !OS_MACOSX
+#if defined(OS_ANDROID)
+  base::ScopedFD icudtl_fd_;
+  base::MemoryMappedFile::Region icudtl_region_;
+#endif
 
   // Vector of additional ChromeContentBrowserClientParts.
   // Parts are deleted in the reverse order they are added.
   std::vector<ChromeContentBrowserClientParts*> extra_parts_;
 
   base::WeakPtrFactory<ChromeContentBrowserClient> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeContentBrowserClient);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_CHROME_CONTENT_BROWSER_CLIENT_H_