Suppress frame requests in InputMethodController::textInputType()

third_party/WebKit/Source/core/editing/InputMethodController.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 27 matching lines @@
 #include "core/editing/state_machines/BackwardCodePointStateMachine.h"
 #include "core/editing/state_machines/ForwardCodePointStateMachine.h"
 #include "core/events/CompositionEvent.h"
 #include "core/frame/LocalFrame.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/HTMLTextAreaElement.h"
 #include "core/input/EventHandler.h"
 #include "core/layout/LayoutObject.h"
 #include "core/layout/LayoutTheme.h"
 #include "core/page/ChromeClient.h"
+#include "core/page/Page.h"
+#include "core/page/PageAnimator.h"
 
 namespace blink {
 
 namespace {
 
 void dispatchCompositionUpdateEvent(LocalFrame& frame, const String& text) {
   Element* target = frame.document()->focusedElement();
   if (!target)
     return;
 
@@ skipping 1117 matching lines @@
 
 WebTextInputType InputMethodController::textInputType() const {
   if (!frame().selection().isAvailable()) {
     // "mouse-capture-inside-shadow.html" reaches here.
     return WebTextInputTypeNone;
   }
 
   // It's important to preserve the equivalence of textInputInfo().type and
   // textInputType(), so perform the same rootEditableElement() existence check
   // here for consistency.
-  if (!frame()
-           .selection()
-           .computeVisibleSelectionInDOMTreeDeprecated()
-           .rootEditableElement())
-    return WebTextInputTypeNone;
+  {
+    // TODO(alancutter): Move this frame request supression logic up into
+    // BeginMainFrame.
+    PageAnimator::FrameRequestSuppressionScope suppressFrameRequests(
+        frame().page() ? &frame().page()->animator() : nullptr);
+
+    if (!frame()
+             .selection()
+             .computeVisibleSelectionInDOMTreeDeprecated()
+             .rootEditableElement()) {
+      return WebTextInputTypeNone;
+    }
+  }
 
   if (!isAvailable())
     return WebTextInputTypeNone;
 
   Element* element = document().focusedElement();
   if (!element)
     return WebTextInputTypeNone;
 
   if (isHTMLInputElement(*element)) {
     HTMLInputElement& input = toHTMLInputElement(*element);
@@ skipping 42 matching lines @@
   finishComposingText(KeepSelection);
 }
 
 DEFINE_TRACE(InputMethodController) {
   visitor->trace(m_frame);
   visitor->trace(m_compositionRange);
   SynchronousMutationObserver::trace(visitor);
 }
 
 }  // namespace blink