//media/midi: use top level namespace midi rather than media.midi

content/browser/media/midi_host.cc

 // Copyright (c) 2013 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.
 
 #include "content/browser/media/midi_host.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/process/process.h"
 #include "base/trace_event/trace_event.h"
 #include "content/browser/bad_message.h"
 #include "content/browser/browser_main_loop.h"
 #include "content/browser/child_process_security_policy_impl.h"
-#include "content/browser/media/media_internals.h"
 #include "content/common/media/midi_messages.h"
 #include "content/public/browser/content_browser_client.h"
-#include "content/public/browser/media_observer.h"
 #include "content/public/browser/user_metrics.h"
 #include "media/midi/midi_manager.h"
 #include "media/midi/midi_message_queue.h"
 #include "media/midi/midi_message_util.h"
 
 namespace content {
 namespace {
 
 // The total number of bytes which we're allowed to send to the OS
 // before knowing that they have been successfully sent.
 const size_t kMaxInFlightBytes = 10 * 1024 * 1024;  // 10 MB.
 
 // We keep track of the number of bytes successfully sent to
 // the hardware.  Every once in a while we report back to the renderer
 // the number of bytes sent since the last report. This threshold determines
 // how many bytes will be sent before reporting back to the renderer.
 const size_t kAcknowledgementThresholdBytes = 1024 * 1024;  // 1 MB.
 
 bool IsDataByte(uint8_t data) {
   return (data & 0x80) == 0;
 }
 
 bool IsSystemRealTimeMessage(uint8_t data) {
   return 0xf8 <= data && data <= 0xff;
 }
 
 }  // namespace
 
-using media::midi::kSysExByte;
-using media::midi::kEndOfSysExByte;
+using midi::kSysExByte;
+using midi::kEndOfSysExByte;
 
 MidiHost::MidiHost(int renderer_process_id,
-                   media::midi::MidiManager* midi_manager)
+                   midi::MidiManager* midi_manager)
     : BrowserMessageFilter(MidiMsgStart),
       renderer_process_id_(renderer_process_id),
       has_sys_ex_permission_(false),
       is_session_requested_(false),
       midi_manager_(midi_manager),
       sent_bytes_in_flight_(0),
       bytes_sent_since_last_acknowledgement_(0),
       output_port_count_(0) {
   DCHECK(midi_manager_);
 }
@@ skipping 74 matching lines @@
   if (midi_manager_)
     midi_manager_->DispatchSendMidiData(this, port, data, timestamp);
 }
 
 void MidiHost::OnEndSession() {
   is_session_requested_ = false;
   if (midi_manager_)
     midi_manager_->EndSession(this);
 }
 
-void MidiHost::CompleteStartSession(media::midi::Result result) {
+void MidiHost::CompleteStartSession(midi::Result result) {
   DCHECK(is_session_requested_);
-  if (result == media::midi::Result::OK) {
+  if (result == midi::Result::OK) {
     // ChildSecurityPolicy is set just before OnStartSession by
     // MidiDispatcherHost. So we can safely cache the policy.
     has_sys_ex_permission_ = ChildProcessSecurityPolicyImpl::GetInstance()->
         CanSendMidiSysExMessage(renderer_process_id_);
   }
   Send(new MidiMsg_SessionStarted(result));
 }
 
-void MidiHost::AddInputPort(const media::midi::MidiPortInfo& info) {
+void MidiHost::AddInputPort(const midi::MidiPortInfo& info) {
   base::AutoLock auto_lock(messages_queues_lock_);
   // MidiMessageQueue is created later in ReceiveMidiData().
   received_messages_queues_.push_back(nullptr);
   Send(new MidiMsg_AddInputPort(info));
 }
 
-void MidiHost::AddOutputPort(const media::midi::MidiPortInfo& info) {
+void MidiHost::AddOutputPort(const midi::MidiPortInfo& info) {
   base::AutoLock auto_lock(output_port_count_lock_);
   output_port_count_++;
   Send(new MidiMsg_AddOutputPort(info));
 }
 
 void MidiHost::SetInputPortState(uint32_t port,
-                                 media::midi::MidiPortState state) {
+                                 midi::MidiPortState state) {
   Send(new MidiMsg_SetInputPortState(port, state));
 }
 
 void MidiHost::SetOutputPortState(uint32_t port,
-                                  media::midi::MidiPortState state) {
+                                  midi::MidiPortState state) {
   Send(new MidiMsg_SetOutputPortState(port, state));
 }
 
 void MidiHost::ReceiveMidiData(uint32_t port,
                                const uint8_t* data,
                                size_t length,
                                double timestamp) {
   TRACE_EVENT0("midi", "MidiHost::ReceiveMidiData");
 
   base::AutoLock auto_lock(messages_queues_lock_);
   if (received_messages_queues_.size() <= port)
     return;
 
   // Lazy initialization
   if (received_messages_queues_[port] == nullptr)
-    received_messages_queues_[port] = new media::midi::MidiMessageQueue(true);
+    received_messages_queues_[port] = new midi::MidiMessageQueue(true);
 
   received_messages_queues_[port]->Add(data, length);
   std::vector<uint8_t> message;
   while (true) {
     received_messages_queues_[port]->Get(&message);
     if (message.empty())
       break;
 
     // MIDI devices may send a system exclusive messages even if the renderer
     // doesn't have a permission to receive it. Don't kill the renderer as
@@ skipping 52 matching lines @@
       } else if (!IsDataByte(current)) {
         return false;  // Error: |current| should have been data byte.
       }
       continue;  // Found data byte as expected.
     }
     if (current == kSysExByte) {
       in_sysex = true;
       sysex_start_offset = i;
       continue;  // Found SysEX
     }
-    waiting_data_length = media::midi::GetMidiMessageLength(current);
+    waiting_data_length = midi::GetMidiMessageLength(current);
     if (waiting_data_length == 0)
       return false;  // Error: |current| should have been a valid status byte.
     --waiting_data_length;  // Found status byte
   }
   return waiting_data_length == 0 && !in_sysex;
 }
 
 }  // namespace content