Remove DownloadProcessService code path

content/app/content_main_runner.cc

Index: content/app/content_main_runner.cc
diff --git a/content/app/content_main_runner.cc b/content/app/content_main_runner.cc
index a17d020a3c26cbb2657f36326712a58236312063..a8e866010eec06dfa0690ae2391ff42f0dc42b20 100644
--- a/content/app/content_main_runner.cc
+++ b/content/app/content_main_runner.cc
@@ -120,9 +120,6 @@ 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 {
@@ -390,9 +387,6 @@ int RunNamedProcessTypeMain(
     { switches::kUtilityProcess,     UtilityMain },
     { switches::kRendererProcess,    RendererMain },
     { switches::kGpuProcess,         GpuMain },
-#if defined(OS_ANDROID)
-    { switches::kDownloadProcess,    DownloadMain},
-#endif
 #endif  // !CHROME_MULTIPLE_DLL_BROWSER
   };