Deleting the forwarding header files base/debug/trace_event*

Now that the migration of the tracing files is completed and all the
tracing clients have been updated to point to base/trace_event/,
it is safe to remove the forwarding headers from the old location.
The only purpose of those headers, in fact, was to handle the renames
in smaller CLs.
The only thing left, at this point, is gradually renaming the
namespaces, which is going to be handled in the upcoming CLs.

See crrev.com/837303004 and the related bug for motivations.

BUG=451032
TBR=jam@chromium.org,sky@chromium.org

Review URL: https://codereview.chromium.org/897663002

Cr-Commit-Position: refs/heads/master@{#314357}

base/BUILD.gn

@@ -171,11 +171,6 @@ component("base") {
     "debug/stack_trace_win.cc",
     "debug/task_annotator.cc",
     "debug/task_annotator.h",
-    "debug/trace_event.h",
-    "debug/trace_event_argument.h",
-    "debug/trace_event_impl.h",
-    "debug/trace_event_synthetic_delay.h",
-    "debug/trace_event_win.h",
     "deferred_sequenced_task_runner.cc",
     "deferred_sequenced_task_runner.h",
     "environment.cc",

base/base.gypi

@@ -173,11 +173,6 @@
           'debug/stack_trace_win.cc',
           'debug/task_annotator.cc',
           'debug/task_annotator.h',
-          'debug/trace_event.h',
-          'debug/trace_event_argument.h',
-          'debug/trace_event_impl.h',
-          'debug/trace_event_synthetic_delay.h',
-          'debug/trace_event_win.h',
           'deferred_sequenced_task_runner.cc',
           'deferred_sequenced_task_runner.h',
           'environment.cc',

base/debug/trace_event.h

-// Copyright (c) 2012 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.
-
-// In the process of moving the trace event files. Right now the headers
-// are being forwarded. In next CLs the change will get completed
-// TODO(ssid): https://code.google.com/p/chromium/issues/detail?id=451032
-
-#ifndef BASE_DEBUG_TRACE_EVENT_H_
-#define BASE_DEBUG_TRACE_EVENT_H_
-
-#include "base/trace_event/trace_event.h"
-
-#endif  // BASE_DEBUG_TRACE_EVENT_H_

base/debug/trace_event_argument.h

-// Copyright 2014 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.
-
-// In the process of moving the trace event files. Right now the headers
-// are being forwarded. In next CLs the change will get completed
-// TODO(ssid): https://code.google.com/p/chromium/issues/detail?id=451032
-
-#ifndef BASE_DEBUG_TRACE_EVENT_ARGUMENT_H_
-#define BASE_DEBUG_TRACE_EVENT_ARGUMENT_H_
-
-#include "base/trace_event/trace_event_argument.h"
-
-#endif // BASE_DEBUG_TRACE_EVENT_ARGUMENT_H_

base/debug/trace_event_impl.h

-// Copyright 2014 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.
-
-// In the process of moving the trace event files. Right now the headers
-// are being forwarded. In next CLs the change will get completed
-// TODO(ssid): https://code.google.com/p/chromium/issues/detail?id=451032
-
-#ifndef BASE_DEBUG_TRACE_EVENT_IMPL_H_
-#define BASE_DEBUG_TRACE_EVENT_IMPL_H_
-
-#include "base/trace_event/trace_event_impl.h"
-
-#endif  // BASE_DEBUG_TRACE_EVENT_IMPL_H_

base/debug/trace_event_synthetic_delay.h

-// Copyright 2014 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.
-
-// In the process of moving the trace event files. Right now the headers
-// are being forwarded. In next CLs the change will get completed
-// TODO(ssid): https://code.google.com/p/chromium/issues/detail?id=451032
-
-#ifndef BASE_DEBUG_TRACE_EVENT_SYNTHETIC_DELAY_H_
-#define BASE_DEBUG_TRACE_EVENT_SYNTHETIC_DELAY_H_
-
-#include "base/trace_event/trace_event_synthetic_delay.h"
-
-#endif  // BASE_DEBUG_TRACE_EVENT_SYNTHETIC_DELAY_H_

base/debug/trace_event_win.h

-// Copyright (c) 2012 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.
-
-// In the process of moving the trace event files. Right now the headers
-// are being forwarded. In next CLs the change will get completed
-// TODO(ssid): https://code.google.com/p/chromium/issues/detail?id=451032
-
-#ifndef BASE_DEBUG_TRACE_EVENT_WIN_H_
-#define BASE_DEBUG_TRACE_EVENT_WIN_H_
-
-#include "base/trace_event/trace_event_win.h"
-
-#endif  // BASE_DEBUG_TRACE_EVENT_WIN_H_

content/renderer/scheduler/task_queue_manager.cc

@@ -5,8 +5,6 @@
 #include "content/renderer/scheduler/task_queue_manager.h"
 
 #include "base/bind.h"
-#include "base/debug/trace_event.h"
-#include "base/debug/trace_event_argument.h"
 #include "base/trace_event/trace_event.h"
 #include "base/trace_event/trace_event_argument.h"
 #include "content/renderer/scheduler/task_queue_selector.h"

ipc/ipc_message.h

@@ -8,7 +8,6 @@
 #include <string>
 
 #include "base/basictypes.h"
-#include "base/debug/trace_event.h"
 #include "base/memory/ref_counted.h"
 #include "base/pickle.h"
 #include "base/trace_event/trace_event.h"

ui/events/ozone/evdev/event_thread_evdev.cc

@@ -6,10 +6,10 @@
 
 #include "base/bind.h"
 #include "base/callback.h"
-#include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/thread_task_runner_handle.h"
 #include "base/threading/thread.h"
+#include "base/trace_event/trace_event.h"
 #include "ui/events/ozone/evdev/device_event_dispatcher_evdev.h"
 #include "ui/events/ozone/evdev/input_device_factory_evdev.h"
 #include "ui/events/ozone/evdev/input_device_factory_evdev_proxy.h"