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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 #include "content/public/browser/browser_message_filter.h" | 5 #include "content/public/browser/browser_message_filter.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/bind_helpers.h" | 8 #include "base/bind_helpers.h" |
9 #include "base/command_line.h" | 9 #include "base/command_line.h" |
10 #include "base/logging.h" | 10 #include "base/logging.h" |
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23 namespace content { | 23 namespace content { |
24 | 24 |
25 class BrowserMessageFilter::Internal : public IPC::MessageFilter { | 25 class BrowserMessageFilter::Internal : public IPC::MessageFilter { |
26 public: | 26 public: |
27 explicit Internal(BrowserMessageFilter* filter) : filter_(filter) {} | 27 explicit Internal(BrowserMessageFilter* filter) : filter_(filter) {} |
28 | 28 |
29 private: | 29 private: |
30 virtual ~Internal() {} | 30 virtual ~Internal() {} |
31 | 31 |
32 // IPC::MessageFilter implementation: | 32 // IPC::MessageFilter implementation: |
33 virtual void OnFilterAdded(IPC::Sender* sender) OVERRIDE { | 33 virtual void OnFilterAdded(IPC::Sender* sender) override { |
34 filter_->sender_ = sender; | 34 filter_->sender_ = sender; |
35 filter_->OnFilterAdded(sender); | 35 filter_->OnFilterAdded(sender); |
36 } | 36 } |
37 | 37 |
38 virtual void OnFilterRemoved() OVERRIDE { | 38 virtual void OnFilterRemoved() override { |
39 filter_->OnFilterRemoved(); | 39 filter_->OnFilterRemoved(); |
40 } | 40 } |
41 | 41 |
42 virtual void OnChannelClosing() OVERRIDE { | 42 virtual void OnChannelClosing() override { |
43 filter_->sender_ = NULL; | 43 filter_->sender_ = NULL; |
44 filter_->OnChannelClosing(); | 44 filter_->OnChannelClosing(); |
45 } | 45 } |
46 | 46 |
47 virtual void OnChannelConnected(int32 peer_pid) OVERRIDE { | 47 virtual void OnChannelConnected(int32 peer_pid) override { |
48 filter_->peer_pid_ = peer_pid; | 48 filter_->peer_pid_ = peer_pid; |
49 filter_->OnChannelConnected(peer_pid); | 49 filter_->OnChannelConnected(peer_pid); |
50 } | 50 } |
51 | 51 |
52 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE { | 52 virtual bool OnMessageReceived(const IPC::Message& message) override { |
53 BrowserThread::ID thread = BrowserThread::IO; | 53 BrowserThread::ID thread = BrowserThread::IO; |
54 filter_->OverrideThreadForMessage(message, &thread); | 54 filter_->OverrideThreadForMessage(message, &thread); |
55 | 55 |
56 if (thread == BrowserThread::IO) { | 56 if (thread == BrowserThread::IO) { |
57 scoped_refptr<base::TaskRunner> runner = | 57 scoped_refptr<base::TaskRunner> runner = |
58 filter_->OverrideTaskRunnerForMessage(message); | 58 filter_->OverrideTaskRunnerForMessage(message); |
59 if (runner.get()) { | 59 if (runner.get()) { |
60 runner->PostTask( | 60 runner->PostTask( |
61 FROM_HERE, | 61 FROM_HERE, |
62 base::Bind( | 62 base::Bind( |
63 base::IgnoreResult(&Internal::DispatchMessage), this, message)); | 63 base::IgnoreResult(&Internal::DispatchMessage), this, message)); |
64 return true; | 64 return true; |
65 } | 65 } |
66 return DispatchMessage(message); | 66 return DispatchMessage(message); |
67 } | 67 } |
68 | 68 |
69 if (thread == BrowserThread::UI && | 69 if (thread == BrowserThread::UI && |
70 !BrowserMessageFilter::CheckCanDispatchOnUI(message, filter_.get())) { | 70 !BrowserMessageFilter::CheckCanDispatchOnUI(message, filter_.get())) { |
71 return true; | 71 return true; |
72 } | 72 } |
73 | 73 |
74 BrowserThread::PostTask( | 74 BrowserThread::PostTask( |
75 thread, FROM_HERE, | 75 thread, FROM_HERE, |
76 base::Bind( | 76 base::Bind( |
77 base::IgnoreResult(&Internal::DispatchMessage), this, message)); | 77 base::IgnoreResult(&Internal::DispatchMessage), this, message)); |
78 return true; | 78 return true; |
79 } | 79 } |
80 | 80 |
81 virtual bool GetSupportedMessageClasses( | 81 virtual bool GetSupportedMessageClasses( |
82 std::vector<uint32>* supported_message_classes) const OVERRIDE { | 82 std::vector<uint32>* supported_message_classes) const override { |
83 supported_message_classes->assign( | 83 supported_message_classes->assign( |
84 filter_->message_classes_to_filter().begin(), | 84 filter_->message_classes_to_filter().begin(), |
85 filter_->message_classes_to_filter().end()); | 85 filter_->message_classes_to_filter().end()); |
86 return true; | 86 return true; |
87 } | 87 } |
88 | 88 |
89 // Dispatches a message to the derived class. | 89 // Dispatches a message to the derived class. |
90 bool DispatchMessage(const IPC::Message& message) { | 90 bool DispatchMessage(const IPC::Message& message) { |
91 bool rv = filter_->OnMessageReceived(message); | 91 bool rv = filter_->OnMessageReceived(message); |
92 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO) || rv) << | 92 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO) || rv) << |
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218 | 218 |
219 IPC::MessageFilter* BrowserMessageFilter::GetFilter() { | 219 IPC::MessageFilter* BrowserMessageFilter::GetFilter() { |
220 // We create this on demand so that if a filter is used in a unit test but | 220 // We create this on demand so that if a filter is used in a unit test but |
221 // never attached to a channel, we don't leak Internal and this; | 221 // never attached to a channel, we don't leak Internal and this; |
222 DCHECK(!internal_) << "Should only be called once."; | 222 DCHECK(!internal_) << "Should only be called once."; |
223 internal_ = new Internal(this); | 223 internal_ = new Internal(this); |
224 return internal_; | 224 return internal_; |
225 } | 225 } |
226 | 226 |
227 } // namespace content | 227 } // namespace content |
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