chromium/components/no_state_prefetch/renderer/no_state_prefetch_utils.cc

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/no_state_prefetch/renderer/no_state_prefetch_utils.h"

#include "base/memory/weak_ptr.h"
#include "components/no_state_prefetch/renderer/no_state_prefetch_helper.h"
#include "content/public/common/page_visibility_state.h"
#include "content/public/renderer/render_frame.h"
#include "media/mojo/mojom/media_player.mojom.h"
#include "mojo/public/cpp/bindings/generic_pending_receiver.h"
#include "third_party/blink/public/platform/browser_interface_broker_proxy.h"
#include "third_party/blink/public/web/web_local_frame.h"
#include "third_party/blink/public/web/web_view.h"
#include "third_party/blink/public/web/web_view_observer.h"

namespace prerender {

namespace {
const char kDeferredMediaLoadStateKey[] = …;

class DeferredMediaLoadState : public base::SupportsUserData::Data { … };

// Defers media player loading in background pages until they're visible unless
// the tab has previously played content before.
class MediaLoadDeferrer : public blink::WebViewObserver { … };

}  // namespace

bool DeferMediaLoad(content::RenderFrame* render_frame,
                    bool has_played_media_before,
                    base::OnceClosure closure) { … }

void SetShouldDeferMediaLoad(content::RenderFrame* render_frame,
                             bool should_defer) { … }

}  // namespace prerender