Moved logic for mapping child process FDs for ICU and V8 into child_process_launcher.cc

chromecast/browser/cast_content_browser_client.h

Index: chromecast/browser/cast_content_browser_client.h
diff --git a/chromecast/browser/cast_content_browser_client.h b/chromecast/browser/cast_content_browser_client.h
index fa71076a0fb5c9e5c7bbeb0c7faced01c6e72d48..59fa5f81d26bf691db45e3667172e7d70272494f 100644
--- a/chromecast/browser/cast_content_browser_client.h
+++ b/chromecast/browser/cast_content_browser_client.h
@@ -75,8 +75,6 @@ class CastContentBrowserClient: public content::ContentBrowserClient {
   bool IsHandledURL(const GURL& url) override;
   void AppendExtraCommandLineSwitches(base::CommandLine* command_line,
                                       int child_process_id) override;
-  void AppendMappedFileCommandLineSwitches(
-      base::CommandLine* command_line) override;
   content::AccessTokenStore* CreateAccessTokenStore() override;
   void OverrideWebkitPrefs(content::RenderViewHost* render_view_host,
                            content::WebPreferences* prefs) override;
@@ -149,11 +147,6 @@ class CastContentBrowserClient: public content::ContentBrowserClient {
   std::map<std::string, breakpad::CrashHandlerHostLinux*> crash_handlers_;
 #endif
 
-  base::ScopedFD v8_natives_fd_;
-  base::ScopedFD v8_snapshot_fd_;
-  bool natives_fd_exists() { return v8_natives_fd_ != -1; }
-  bool snapshot_fd_exists() { return v8_snapshot_fd_ != -1; }
-
   scoped_ptr<URLRequestContextFactory> url_request_context_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CastContentBrowserClient);