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

extensions/shell/browser/shell_content_browser_client.h

Index: extensions/shell/browser/shell_content_browser_client.h
diff --git a/extensions/shell/browser/shell_content_browser_client.h b/extensions/shell/browser/shell_content_browser_client.h
index 16e51ca448516b202795243a245d02c085e75a2f..d282397624ffab47f047a5cb015982235ba82450 100644
--- a/extensions/shell/browser/shell_content_browser_client.h
+++ b/extensions/shell/browser/shell_content_browser_client.h
@@ -52,12 +52,21 @@
   void SiteInstanceDeleting(content::SiteInstance* site_instance) override;
   void AppendExtraCommandLineSwitches(base::CommandLine* command_line,
                                       int child_process_id) override;
+  void AppendMappedFileCommandLineSwitches(
+      base::CommandLine* command_line) override;
   content::SpeechRecognitionManagerDelegate*
   CreateSpeechRecognitionManagerDelegate() override;
   content::BrowserPpapiHost* GetExternalBrowserPpapiHost(
       int plugin_process_id) override;
   void GetAdditionalAllowedSchemesForFileSystem(
       std::vector<std::string>* additional_schemes) override;
+#if defined(OS_POSIX) && !defined(OS_MACOSX)
+  void GetAdditionalMappedFilesForChildProcess(
+      const base::CommandLine& command_line,
+      int child_process_id,
+      content::FileDescriptorInfo* mappings) override;
+#endif
+
   content::DevToolsManagerDelegate* GetDevToolsManagerDelegate() override;
 
  protected:
@@ -73,6 +82,13 @@
   // Returns the extension or app associated with |site_instance| or NULL.
   const Extension* GetExtension(content::SiteInstance* site_instance);
 
+#if defined(OS_POSIX) && !defined(OS_MACOSX)
+  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; }
+#endif
+
   // Owned by content::BrowserMainLoop.
   ShellBrowserMainParts* browser_main_parts_;