Move <webview> API to chrome layer

content/browser/browser_plugin/browser_plugin_guest_impl.cc

Index: content/browser/browser_plugin/browser_plugin_guest_impl.cc
diff --git a/content/browser/browser_plugin/browser_plugin_guest_impl.cc b/content/browser/browser_plugin/browser_plugin_guest_impl.cc
index f5e1b58b682387d67f8207cb22026f1183d35112..80f2fb1a1e5dde0db23e1a1af05537eececb3356 100644
--- a/content/browser/browser_plugin/browser_plugin_guest_impl.cc
+++ b/content/browser/browser_plugin/browser_plugin_guest_impl.cc
@@ -123,7 +123,6 @@ bool BrowserPluginGuestImpl::OnMessageReceivedFromEmbedder(
                         OnDragStatusUpdate)
     IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_ForwardMessage,
                         OnForwardMessage)
-    IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_Go, OnGo)
     IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_HandleInputEvent,
                         OnHandleInputEvent)
     IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_NavigateGuest, OnNavigateGuest)
@@ -182,6 +181,8 @@ void BrowserPluginGuestImpl::Initialize(
 
   GetContentClient()->browser()->GuestWebContentsCreated(
       web_contents(), embedder_web_contents_);
+
+  GetContentClient()->browser()->BrowserPluginGuestCreated(this);
 }
 
 BrowserPluginGuestImpl::~BrowserPluginGuestImpl() {
@@ -570,10 +571,6 @@ void BrowserPluginGuestImpl::OnForwardMessage(int instance_id,
   }
 }
 
-void BrowserPluginGuestImpl::OnGo(int instance_id, int relative_index) {
-  web_contents()->GetController().GoToOffset(relative_index);
-}
-
 void BrowserPluginGuestImpl::OnHandleInputEvent(
     int instance_id,
     const gfx::Rect& guest_window_rect,