Refactor GuestViewContainer to split out WebView related logic and MimeHandlerView related logic.

extensions/renderer/guest_view/guest_view_internal_custom_bindings.cc

Index: extensions/renderer/guest_view/guest_view_internal_custom_bindings.cc
diff --git a/extensions/renderer/guest_view/guest_view_internal_custom_bindings.cc b/extensions/renderer/guest_view/guest_view_internal_custom_bindings.cc
index 356fac39cdce57219c0436abe068f1f818532c91..3d588b0177c20365f6876ca953faefcf54c4718e 100644
--- a/extensions/renderer/guest_view/guest_view_internal_custom_bindings.cc
+++ b/extensions/renderer/guest_view/guest_view_internal_custom_bindings.cc
@@ -11,7 +11,7 @@
 #include "content/public/renderer/v8_value_converter.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_messages.h"
-#include "extensions/renderer/guest_view/guest_view_container.h"
+#include "extensions/renderer/guest_view/web_view_container.h"
 #include "extensions/renderer/script_context.h"
 #include "v8/include/v8.h"
 
@@ -41,15 +41,15 @@ void GuestViewInternalCustomBindings::AttachGuest(
   CHECK(args.Length() < 4 || args[3]->IsFunction());
 
   int element_instance_id = args[0]->Int32Value();
-  // An element instance ID uniquely identifies a GuestViewContainer within
-  // a RenderView.
-  GuestViewContainer* guest_view_container =
-      GuestViewContainer::FromID(context()->GetRenderView()->GetRoutingID(),
-                                 element_instance_id);
+  // An element instance ID uniquely identifies a WebViewContainer within a
+  // RenderView.
+  WebViewContainer* web_view_container =
+      WebViewContainer::FromID(context()->GetRenderView()->GetRoutingID(),
+                               element_instance_id);
 
   // TODO(fsamuel): Should we be reporting an error if the element instance ID
   // is invalid?
-  if (!guest_view_container)
+  if (!web_view_container)
     return;
 
   int guest_instance_id = args[1]->Int32Value();
@@ -64,15 +64,15 @@ void GuestViewInternalCustomBindings::AttachGuest(
         static_cast<base::DictionaryValue*>(params_as_value.release()));
   }
 
-  linked_ptr<GuestViewContainer::AttachRequest> request(
-      new GuestViewContainer::AttachRequest(
+  linked_ptr<WebViewContainer::AttachRequest> request(
+      new WebViewContainer::AttachRequest(
           element_instance_id,
           guest_instance_id,
           params.Pass(),
           args.Length() == 4 ? args[3].As<v8::Function>() :
               v8::Handle<v8::Function>(),
           args.GetIsolate()));
-  guest_view_container->AttachGuest(request);
+  web_view_container->AttachGuest(request);
 
   args.GetReturnValue().Set(v8::Boolean::New(context()->isolate(), true));
 }