Introduce background Download process to android

content/app/content_main_runner.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 "content/public/app/content_main_runner.h"
 
 #include <stddef.h>
 #include <stdlib.h>
 #include <string.h>
 #include <string>
@@ skipping 114 matching lines @@
 extern int GpuMain(const content::MainFunctionParams&);
 #if defined(ENABLE_PLUGINS)
 #if !defined(OS_LINUX)
 extern int PluginMain(const content::MainFunctionParams&);
 #endif
 extern int PpapiPluginMain(const MainFunctionParams&);
 extern int PpapiBrokerMain(const MainFunctionParams&);
 #endif
 extern int RendererMain(const content::MainFunctionParams&);
 extern int UtilityMain(const MainFunctionParams&);
+#if defined(OS_ANDROID)
+extern int DownloadMain(const MainFunctionParams&);
+#endif
 }  // namespace content
 
 namespace content {
 
 #if !defined(CHROME_MULTIPLE_DLL_CHILD)
 base::LazyInstance<ContentBrowserClient>
     g_empty_content_browser_client = LAZY_INSTANCE_INITIALIZER;
 #endif  //  !CHROME_MULTIPLE_DLL_CHILD
 
 #if !defined(OS_IOS) && !defined(CHROME_MULTIPLE_DLL_BROWSER)
@@ skipping 206 matching lines @@
 #if defined(ENABLE_PLUGINS)
 #if !defined(OS_LINUX)
     { switches::kPluginProcess,      PluginMain },
 #endif
     { switches::kPpapiPluginProcess, PpapiPluginMain },
     { switches::kPpapiBrokerProcess, PpapiBrokerMain },
 #endif  // ENABLE_PLUGINS
     { switches::kUtilityProcess,     UtilityMain },
     { switches::kRendererProcess,    RendererMain },
     { switches::kGpuProcess,         GpuMain },
+#if defined(OS_ANDROID)
+    { switches::kDownloadProcess,    DownloadMain},
+#endif
 #endif  // !CHROME_MULTIPLE_DLL_BROWSER
   };
 
   RegisterMainThreadFactories();
 
   for (size_t i = 0; i < arraysize(kMainFunctions); ++i) {
     if (process_type == kMainFunctions[i].name) {
       if (delegate) {
         int exit_code = delegate->RunProcess(process_type,
             main_function_params);
@@ skipping 475 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(ContentMainRunnerImpl);
 };
 
 // static
 ContentMainRunner* ContentMainRunner::Create() {
   return new ContentMainRunnerImpl();
 }
 
 }  // namespace content