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

extensions/browser/guest_view/web_view/web_view_guest.cc

Index: extensions/browser/guest_view/web_view/web_view_guest.cc
diff --git a/extensions/browser/guest_view/web_view/web_view_guest.cc b/extensions/browser/guest_view/web_view/web_view_guest.cc
index 43f68b924cfc13f792bb28c3f1cbeb0edef603f5..515323efb41a8868e657e915d4fe500ade811e6c 100644
--- a/extensions/browser/guest_view/web_view/web_view_guest.cc
+++ b/extensions/browser/guest_view/web_view/web_view_guest.cc
@@ -4,6 +4,7 @@
 
 #include "extensions/browser/guest_view/web_view/web_view_guest.h"
 
+#include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
@@ -30,6 +31,7 @@
 #include "content/public/browser/user_metrics.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_delegate.h"
+#include "content/public/common/content_switches.h"
 #include "content/public/common/media_stream_request.h"
 #include "content/public/common/page_zoom.h"
 #include "content/public/common/result_codes.h"
@@ -341,7 +343,11 @@ void WebViewGuest::DidInitialize(const base::DictionaryValue& create_params) {
   // requests.
   PushWebViewStateToIOThread();
 
-  ApplyAttributes(create_params);
+  // TODO(lazyboy): Fix this, site-per-process should also use this code path.
+  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kSitePerProcess)) {
+    ApplyAttributes(create_params);
+  }
 }
 
 void WebViewGuest::AttachWebViewHelpers(WebContents* contents) {
@@ -836,7 +842,7 @@ void WebViewGuest::FrameNameChanged(RenderFrameHost* render_frame_host,
   if (name_ == name)
     return;
 
-  ReportFrameNameChange(name);
+  // ReportFrameNameChange(name);
 }
 
 void WebViewGuest::ReportFrameNameChange(const std::string& name) {
@@ -1046,8 +1052,8 @@ void WebViewGuest::ApplyAttributes(const base::DictionaryValue& params) {
     if (name_.empty())
       SetName(name);
   }
-  if (attached())
-    ReportFrameNameChange(name_);
+  // if (attached())
+  //  ReportFrameNameChange(name_);
 
   std::string user_agent_override;
   params.GetString(webview::kParameterUserAgentOverride, &user_agent_override);
@@ -1222,6 +1228,11 @@ content::WebContents* WebViewGuest::OpenURLFromTab(
         owner_web_contents(), params);
   }
 
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kSitePerProcess)) {
+    return OpenURLFromTabForSitePerProcess(source, params);
+  }
+
   // If the guest wishes to navigate away prior to attachment then we save the
   // navigation to perform upon attachment. Navigation initializes a lot of
   // state that assumes an embedder exists, such as RenderWidgetHostViewGuest.
@@ -1261,6 +1272,23 @@ content::WebContents* WebViewGuest::OpenURLFromTab(
   return nullptr;
 }
 
+content::WebContents* WebViewGuest::OpenURLFromTabForSitePerProcess(
+    content::WebContents* source,
+    const content::OpenURLParams& params) {
+  // site-per-process
+  LOG(WARNING) << "source: " << source << ", web_contents: " << web_contents();
+  // CHECK(0);
+  content::NavigationController::LoadURLParams load_url_params(params.url);
+  load_url_params.referrer = params.referrer;
+  load_url_params.transition_type = params.transition;
+  load_url_params.extra_headers = std::string();
+  // load_url_params.frame_tree_node_id = params.frame_tree_node_id;
+  load_url_params.transferred_global_request_id =
+      params.transferred_global_request_id;
+  source->GetController().LoadURLWithParams(load_url_params);
+  return source;
+}
+
 void WebViewGuest::WebContentsCreated(WebContents* source_contents,
                                       int opener_render_frame_id,
                                       const base::string16& frame_name,