1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This file exposes services in the browser to child processes.
#include "base/functional/bind.h"
#include "base/no_destructor.h"
#include "base/task/thread_pool.h"
#include "build/build_config.h"
#include "components/discardable_memory/public/mojom/discardable_shared_memory_manager.mojom.h"
#include "components/discardable_memory/service/discardable_shared_memory_manager.h"
#include "content/browser/browser_child_process_host_impl.h"
#include "content/browser/field_trial_recorder.h"
#include "content/common/field_trial_recorder.mojom.h"
#include "content/public/browser/browser_child_process_host_delegate.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/device_service.h"
#include "content/public/common/content_features.h"
#include "mojo/public/cpp/bindings/binder_map.h"
#include "services/device/public/mojom/power_monitor.mojom.h"
#include "services/metrics/public/cpp/ukm_recorder.h"
#include "services/metrics/public/mojom/ukm_interface.mojom.h"
#include "services/metrics/ukm_recorder_factory_impl.h"
#if BUILDFLAG(IS_MAC)
#include "content/browser/sandbox_support_impl.h"
#include "content/common/sandbox_support.mojom.h"
#endif
#if BUILDFLAG(IS_WIN)
#include "content/browser/renderer_host/dwrite_font_proxy_impl_win.h"
#include "content/browser/sandbox_support_impl.h"
#include "content/common/sandbox_support.mojom.h"
#include "content/public/common/font_cache_dispatcher_win.h"
#include "content/public/common/font_cache_win.mojom.h"
#endif
namespace content {
namespace {
BrowserChildProcessHost::BindHostReceiverInterceptor&
GetBindHostReceiverInterceptor() {
static base::NoDestructor<
BrowserChildProcessHost::BindHostReceiverInterceptor>
interceptor;
return *interceptor;
}
} // namespace
void BrowserChildProcessHostImpl::BindHostReceiver(
mojo::GenericPendingReceiver receiver) {
// TODO(crbug.com/40285371): this function should run on the IO thread and
// calls functions documented as running on the IO thread.
DCHECK_CURRENTLY_ON(BrowserThread::UI);
const auto& interceptor = GetBindHostReceiverInterceptor();
if (interceptor) {
interceptor.Run(this, &receiver);
if (!receiver) {
return;
}
}
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
if (auto r = receiver.As<mojom::ThreadTypeSwitcher>()) {
child_thread_type_switcher_.Bind(std::move(r));
return;
}
#endif // (BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS))
if (auto r =
receiver.As<memory_instrumentation::mojom::CoordinatorConnector>()) {
// Well-behaved child processes do not bind this interface more than once.
if (!coordinator_connector_receiver_.is_bound())
coordinator_connector_receiver_.Bind(std::move(r));
return;
}
#if BUILDFLAG(IS_MAC)
if (auto r = receiver.As<mojom::SandboxSupport>()) {
static base::NoDestructor<SandboxSupportImpl> sandbox_support;
sandbox_support->BindReceiver(std::move(r));
return;
}
#endif
#if BUILDFLAG(IS_WIN)
if (auto r = receiver.As<mojom::FontCacheWin>()) {
FontCacheDispatcher::Create(std::move(r));
return;
}
if (auto r = receiver.As<mojom::SandboxSupport>()) {
static base::NoDestructor<SandboxSupportImpl> sandbox_support;
sandbox_support->BindReceiver(std::move(r));
return;
}
if (auto r = receiver.As<blink::mojom::DWriteFontProxy>()) {
base::ThreadPool::CreateSequencedTaskRunner(
{base::TaskPriority::USER_BLOCKING, base::MayBlock()})
->PostTask(FROM_HERE,
base::BindOnce(&DWriteFontProxyImpl::Create, std::move(r)));
return;
}
#endif
if (auto r = receiver.As<mojom::FieldTrialRecorder>()) {
FieldTrialRecorder::Create(std::move(r));
return;
}
if (auto r = receiver.As<
discardable_memory::mojom::DiscardableSharedMemoryManager>()) {
GetIOThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(
[](mojo::PendingReceiver<
discardable_memory::mojom::DiscardableSharedMemoryManager> r) {
discardable_memory::DiscardableSharedMemoryManager::Get()->Bind(
std::move(r));
},
std::move(r)));
return;
}
if (auto r = receiver.As<device::mojom::PowerMonitor>()) {
GetDeviceService().BindPowerMonitor(std::move(r));
return;
}
if (auto r = receiver.As<ukm::mojom::UkmRecorderFactory>()) {
metrics::UkmRecorderFactoryImpl::Create(ukm::UkmRecorder::Get(),
std::move(r));
return;
}
if (binder_map_.TryBind(this, &receiver)) {
return;
}
delegate_->BindHostReceiver(std::move(receiver));
}
// static
void BrowserChildProcessHost::InterceptBindHostReceiverForTesting(
BindHostReceiverInterceptor callback) {
GetBindHostReceiverInterceptor() = std::move(callback);
}
} // namespace content
|
