Move guest_view to extensions.

extensions/browser/guest_view/guest_view_base.cc

Index: extensions/browser/guest_view/guest_view_base.cc
diff --git a/chrome/browser/guest_view/guest_view_base.cc b/extensions/browser/guest_view/guest_view_base.cc
similarity index 98%
rename from chrome/browser/guest_view/guest_view_base.cc
rename to extensions/browser/guest_view/guest_view_base.cc
index ddc4a0bf32be1be68f24b574659d32b81de33709..60e1b3cfd14ba585cb77b1f955ece1f4e014332a 100644
--- a/chrome/browser/guest_view/guest_view_base.cc
+++ b/extensions/browser/guest_view/guest_view_base.cc
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/guest_view/guest_view_base.h"
+#include "extensions/browser/guest_view/guest_view_base.h"
 
 #include "base/lazy_instance.h"
 #include "base/strings/utf_string_conversions.h"
-#include "chrome/browser/guest_view/guest_view_manager.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
@@ -16,6 +15,7 @@
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/guest_view/guest_view_constants.h"
+#include "extensions/browser/guest_view/guest_view_manager.h"
 #include "extensions/browser/process_map.h"
 #include "extensions/common/features/feature.h"
 #include "extensions/common/features/feature_provider.h"
@@ -23,6 +23,8 @@
 
 using content::WebContents;
 
+namespace extensions {
+
 namespace {
 
 typedef std::map<std::string, GuestViewBase::GuestCreationCallback>
@@ -448,3 +450,5 @@ void GuestViewBase::CompleteInit(const std::string& embedder_extension_id,
 void GuestViewBase::RegisterGuestViewTypes() {
   extensions::ExtensionsAPIClient::Get()->RegisterGuestViewTypes();
 }
+
+}  // namespace extensions