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// Copyright 2018 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.
// This file exposes an interface to the chrome://discards Web UI to allow
// viewing and exploring the CU graph.
module performance_manager.mojom;
import "mojo/public/mojom/base/process_id.mojom";
import "mojo/public/mojom/base/time.mojom";
import "url/mojom/url.mojom";
// Represents the momentary state of a Page CU.
struct WebUIPageInfo {
int64 id;
url.mojom.Url main_frame_url;
// TODO(siggi): Estimate data.
};
// Represents the momentary state of a Frame CU.
struct WebUIFrameInfo {
int64 id;
url.mojom.Url url;
int64 page_id;
int64 parent_frame_id;
int64 process_id;
};
// Represents the momentary state of a Process CU.
struct WebUIProcessInfo {
int64 id;
mojo_base.mojom.ProcessId pid;
mojo_base.mojom.TimeDelta cumulative_cpu_usage;
uint64 private_footprint_kb;
};
// Used to transport favicon data.
struct WebUIFavIconInfo {
int64 node_id;
// Contains the base64-encoded icon data, suitable for inclusion in a
// data URL.
string icon_data;
};
interface WebUIGraphChangeStream {
FrameCreated(WebUIFrameInfo frame);
PageCreated(WebUIPageInfo pages);
ProcessCreated(WebUIProcessInfo process);
FrameChanged(WebUIFrameInfo frame);
PageChanged(WebUIPageInfo page);
ProcessChanged(WebUIProcessInfo process);
FavIconDataAvailable(WebUIFavIconInfo favicon);
NodeDeleted(int64 node_id);
};
// This interface allows subscribing to a stream of events that track the state
// of the performance manager graph.
interface WebUIGraphDump {
SubscribeToChanges(WebUIGraphChangeStream change_subscriber);
};
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