Add decode() functionality to image elements.

third_party/WebKit/Source/web/WebFrameWidgetBase.cpp

 // Copyright 2016 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 "web/WebFrameWidgetBase.h"
 
 #include "core/dom/DocumentUserGestureToken.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/VisualViewport.h"
 #include "core/input/EventHandler.h"
@@ skipping 225 matching lines @@
 
 void WebFrameWidgetBase::DidNotAcquirePointerLock() {
   GetPage()->GetPointerLockController().DidNotAcquirePointerLock();
 }
 
 void WebFrameWidgetBase::DidLosePointerLock() {
   pointer_lock_gesture_token_.Clear();
   GetPage()->GetPointerLockController().DidLosePointerLock();
 }
 
+void WebFrameWidgetBase::RequestDecode(
+    sk_sp<SkImage> image,
+    std::unique_ptr<WTF::Function<void(bool)>> callback) {
+  View()->RequestDecode(std::move(image), std::move(callback));
+}
+
 void WebFrameWidgetBase::PointerLockMouseEvent(const WebInputEvent& event) {
   std::unique_ptr<UserGestureIndicator> gesture_indicator;
   AtomicString event_type;
   switch (event.GetType()) {
     case WebInputEvent::kMouseDown:
       event_type = EventTypeNames::mousedown;
       if (!GetPage() || !GetPage()->GetPointerLockController().GetElement())
         break;
       gesture_indicator = WTF::WrapUnique(new UserGestureIndicator(
           DocumentUserGestureToken::Create(&GetPage()
@@ skipping 19 matching lines @@
 
   if (GetPage()) {
     WebMouseEvent transformed_event = TransformWebMouseEvent(
         ToWebLocalFrameImpl(LocalRoot())->GetFrameView(), mouse_event);
     GetPage()->GetPointerLockController().DispatchLockedMouseEvent(
         transformed_event, event_type);
   }
 }
 
 }  // namespace blink