Make <webview> use out-of-process iframe architecture.

extensions/browser/guest_view/web_view/web_view_guest.h

Index: extensions/browser/guest_view/web_view/web_view_guest.h
diff --git a/extensions/browser/guest_view/web_view/web_view_guest.h b/extensions/browser/guest_view/web_view/web_view_guest.h
index 517c1db5095b46150adc5cabcdfd314e1876b903..843b4a82edfd94be68677bf4f110d70c709bff92 100644
--- a/extensions/browser/guest_view/web_view/web_view_guest.h
+++ b/extensions/browser/guest_view/web_view/web_view_guest.h
@@ -23,6 +23,10 @@ namespace blink {
 struct WebFindOptions;
 }  // nanespace blink
 
+namespace content {
+struct GlobalRequestID;
+}  // namespace content
+
 namespace extensions {
 
 class WebViewInternalFindFunction;
@@ -316,10 +320,13 @@ class WebViewGuest : public guest_view::GuestView<WebViewGuest>,
 
   // Loads the |url| provided. |force_navigation| indicates whether to reload
   // the content if the provided |url| matches the current page of the guest.
-  void LoadURLWithParams(const GURL& url,
-                         const content::Referrer& referrer,
-                         ui::PageTransition transition_type,
-                         bool force_navigation);
+  // TODO(lazyboy): Use OpenURLParams as parameter.?

[Fady Samuel, 2015/06/11 22:27:21]

The WebViewGuest changes seem like something you can land separately. Might as
well do it now in a separate patch?

+  void LoadURLWithParams(
+      const GURL& url,
+      const content::Referrer& referrer,
+      ui::PageTransition transition_type,
+      const content::GlobalRequestID& transferred_global_request_id,
+      bool force_navigation);
 
   void RequestNewWindowPermission(
       WindowOpenDisposition disposition,