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

content/browser/web_contents/web_contents_impl.h

Index: content/browser/web_contents/web_contents_impl.h
diff --git a/content/browser/web_contents/web_contents_impl.h b/content/browser/web_contents/web_contents_impl.h
index c4f908caa0ab8f497182e675f78b8041149cc7db..f7a5fdbe1c2acc8726c17bfb089cca91cca43502 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -25,6 +25,7 @@
 #include "content/browser/media/audio_state_provider.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
 #include "content/browser/renderer_host/render_widget_host_delegate.h"
+#include "content/browser/web_contents/web_contents_node.h"
 #include "content/common/accessibility_mode_enums.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/color_chooser.h"
@@ -124,6 +125,9 @@ class CONTENT_EXPORT WebContentsImpl
   // members call back into our virtual functions in the constructor.
   virtual void Init(const WebContents::CreateParams& params);
 
+  int AttachLocalFrameToGuest(WebContents* embedder_web_contents,

[Charlie Reis, 2015/04/08 23:42:11]

This belongs with the WebContents overrides below.

[lazyboy, 2015/04/14 01:38:04]

Done.

+                              int embedder_frame_routing_id) override;
+
   // Returns the SavePackage which manages the page saving job. May be NULL.
   SavePackage* save_package() const { return save_package_.get(); }
 
@@ -590,6 +594,7 @@ class CONTENT_EXPORT WebContentsImpl
   bool FocusLocationBarByDefault() override;
   void SetFocusToLocationBar(bool select_all) override;
   bool IsHidden() override;
+  int64 GetParentFrameTreeNodeID() override;
 
   // NotificationObserver ------------------------------------------------------
 
@@ -1259,6 +1264,8 @@ class CONTENT_EXPORT WebContentsImpl
 
   bool virtual_keyboard_requested_;
 
+  WebContentsNode node_;
+
 #if defined(ENABLE_BROWSER_CDMS)
   // Manages all the media player and CDM managers and forwards IPCs to them.
   scoped_ptr<MediaWebContentsObserver> media_web_contents_observer_;