PagePopups should have the grab behavior same as <select> popup.

content/browser/renderer_host/render_widget_host_view_aura.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/render_widget_host_view_aura.h"
 
 #include "base/auto_reset.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 2369 matching lines @@
 }
 
 void RenderWidgetHostViewAura::Shutdown() {
   if (!in_shutdown_) {
     in_shutdown_ = true;
     host_->Shutdown();
   }
 }
 
 bool RenderWidgetHostViewAura::NeedsInputGrab() {
-  return popup_type_ == blink::WebPopupTypeSelect;
+  return popup_type_ == blink::WebPopupTypeSelect
+      || popup_type_ == blink::WebPopupTypePage;

[sadrul, 2015/03/23 07:05:38]

I think the style-guide suggests the || at the EOL. Mind doing a 'git cl format'
on it?

[tkent, 2015/03/23 07:08:40]

You're right.  'git cl format' corrected this error.

 }
 
 bool RenderWidgetHostViewAura::NeedsMouseCapture() {
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
   return NeedsInputGrab();
 #endif
   return false;
 }
 
 void RenderWidgetHostViewAura::FinishImeCompositionSession() {
@@ skipping 312 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewBase, public:
 
 // static
 void RenderWidgetHostViewBase::GetDefaultScreenInfo(WebScreenInfo* results) {
   GetScreenInfoForWindow(results, NULL);
 }
 
 }  // namespace content