Add decode() functionality to image elements.

third_party/WebKit/Source/core/frame/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 "core/frame/WebFrameWidgetBase.h"
 
 #include "core/dom/UserGestureIndicator.h"
 #include "core/events/WebInputEventConversion.h"
 #include "core/exported/WebViewBase.h"
 #include "core/frame/LocalFrameView.h"
@@ skipping 235 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));
+}
+
 // TODO(665924): Remove direct dispatches of mouse events from
 // PointerLockController, instead passing them through EventHandler.
 void WebFrameWidgetBase::PointerLockMouseEvent(
     const WebCoalescedInputEvent& coalesced_event) {
   const WebInputEvent& input_event = coalesced_event.Event();
   const WebMouseEvent& mouse_event =
       static_cast<const WebMouseEvent&>(input_event);
   WebMouseEvent transformed_event = TransformWebMouseEvent(
       ToWebLocalFrameBase(LocalRoot())->GetFrameView(), mouse_event);
 
@@ skipping 52 matching lines @@
 }
 
 LocalFrame* WebFrameWidgetBase::FocusedLocalFrameInWidget() const {
   LocalFrame* frame = GetPage()->GetFocusController().FocusedFrame();
   return (frame && frame->LocalFrameRoot() == ToCoreFrame(LocalRoot()))
              ? frame
              : nullptr;
 }
 
 }  // namespace blink