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Side by Side Diff: chrome/browser/process_resource_usage.h

Issue 1722493002: Project Eraser: Kill chrome://memory. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Fix chrome_browser_ui.gypi. Created 4 years, 9 months ago
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1 // Copyright 2015 The Chromium Authors. All rights reserved. 1 // Copyright 2015 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef CHROME_BROWSER_PROCESS_RESOURCE_USAGE_H_ 5 #ifndef CHROME_BROWSER_PROCESS_RESOURCE_USAGE_H_
6 #define CHROME_BROWSER_PROCESS_RESOURCE_USAGE_H_ 6 #define CHROME_BROWSER_PROCESS_RESOURCE_USAGE_H_
7 7
8 #include <stddef.h> 8 #include <stddef.h>
9 9
10 #include <deque> 10 #include <deque>
11 11
12 #include "base/callback.h" 12 #include "base/callback.h"
13 #include "base/macros.h" 13 #include "base/macros.h"
14 #include "base/threading/thread_checker.h" 14 #include "base/threading/thread_checker.h"
15 #include "chrome/common/resource_usage_reporter.mojom.h" 15 #include "chrome/common/resource_usage_reporter.mojom.h"
16 #include "third_party/WebKit/public/web/WebCache.h" 16 #include "third_party/WebKit/public/web/WebCache.h"
17 17
18 // Provides resource usage information about a child process. 18 // Provides resource usage information about a child process.
19 // 19 //
20 // This is a wrapper around the ResourceUsageReporter Mojo service that exposes 20 // This is a wrapper around the ResourceUsageReporter Mojo service that exposes
21 // information about resources used by a child process. Currently, this is only 21 // information about resources used by a child process. Currently, this is only
22 // V8 memory and Blink resource cache usage, but could be expanded to include 22 // V8 memory and Blink resource cache usage, but could be expanded to include
23 // other resources. This is intended for status viewers such as the task 23 // other resources. This is intended for status viewers such as the task
24 // manager and about://memory-internals. 24 // manager.
25 // 25 //
26 // To create: 26 // To create:
27 // 1. Create a ResourceUsageReporterPtr and obtain an InterfaceRequest<> using 27 // 1. Create a ResourceUsageReporterPtr and obtain an InterfaceRequest<> using
28 // mojo::GetProxy. 28 // mojo::GetProxy.
29 // 2. Use the child process's service registry to connect to the service using 29 // 2. Use the child process's service registry to connect to the service using
30 // the InterfaceRequest<>. Note, ServiceRegistry is thread hostile and 30 // the InterfaceRequest<>. Note, ServiceRegistry is thread hostile and
31 // must always be accessed from the same thread. However, InterfaceRequest<> 31 // must always be accessed from the same thread. However, InterfaceRequest<>
32 // can be passed safely between threads, and therefore a task can be posted 32 // can be passed safely between threads, and therefore a task can be posted
33 // to the ServiceRegistry thread to connect to the remote service. 33 // to the ServiceRegistry thread to connect to the remote service.
34 // 3. Pass the ResourceUsageReporterPtr to the constructor. 34 // 3. Pass the ResourceUsageReporterPtr to the constructor.
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81 std::deque<base::Closure> refresh_callbacks_; 81 std::deque<base::Closure> refresh_callbacks_;
82 82
83 ResourceUsageDataPtr stats_; 83 ResourceUsageDataPtr stats_;
84 84
85 base::ThreadChecker thread_checker_; 85 base::ThreadChecker thread_checker_;
86 86
87 DISALLOW_COPY_AND_ASSIGN(ProcessResourceUsage); 87 DISALLOW_COPY_AND_ASSIGN(ProcessResourceUsage);
88 }; 88 };
89 89
90 #endif // CHROME_BROWSER_PROCESS_RESOURCE_USAGE_H_ 90 #endif // CHROME_BROWSER_PROCESS_RESOURCE_USAGE_H_
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