Don't fork renderer process for guest

atom/browser/api/atom_api_web_contents.cc

@@ -160,7 +160,7 @@ content::WebContents* WebContents::CreateNewGuestWindow(
 void WebContents::DidAttach() {
   base::ListValue args;
   args.Append(extra_params_.release());
-  Emit("internal-did-attach", args);
+  Emit("did-attach", args);
 }
 
 int WebContents::GetGuestInstanceID() const {

atom/browser/api/lib/web-contents.coffee

@@ -26,10 +26,6 @@ module.exports.wrap = (webContents) ->
   webContents.getId = -> "#{@getProcessId()}-#{@getRoutingId()}"
   webContents.equal = (other) -> @getId() is other.getId()
 
-  # Set frame name of WebContents.
-  webContents.setName = (name) ->
-    @send 'ATOM_SHELL_WEB_CONTENTS_SET_NAME', name
-
   # Tell the rpc server that a render view has been deleted and we need to
   # release all objects owned by it.
   webContents.on 'render-view-deleted', (event, processId, routingId) ->

atom/browser/atom_browser_client.cc

@@ -11,6 +11,7 @@
 #include "atom/browser/atom_speech_recognition_manager_delegate.h"
 #include "atom/browser/native_window.h"
 #include "atom/browser/window_list.h"
+#include "base/command_line.h"
 #include "chrome/browser/printing/printing_message_filter.h"
 #include "chrome/browser/speech/tts_message_filter.h"
 #include "content/public/browser/render_process_host.h"
@@ -148,6 +149,9 @@ void AtomBrowserClient::AppendExtraCommandLineSwitches(
 
   if (window != NULL)
     window->AppendExtraCommandLineSwitches(command_line, child_process_id);
+  else
+    // If we can not find a owner window then it is a guest web view.
+    command_line->AppendSwitch("guest");
 
   dying_render_process_ = NULL;
 }

atom/browser/lib/guest-view-manager.coffee

@@ -26,7 +26,7 @@ createGuest = (embedder, params) ->
     destroyGuest id
 
   # Init guest web view after attached.
-  guest.once 'internal-did-attach', (event, params) ->
+  guest.once 'did-attach', (event, params) ->
     min = width: params.minwidth, height: params.minheight
     max = width: params.maxwidth, height: params.maxheight
     @setAutoSize params.autosize, min, max