Upstream some more content/ DEPS-related cleanup.

content/browser/android/trace_event_binding.cc

-// 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.
-
-#include "content/browser/android/trace_event_binding.h"
-
-#include <jni.h>
-
-#include <set>
-
-#include "base/debug/trace_event.h"
-#include "base/lazy_instance.h"
-#include "jni/trace_event_jni.h"
-
-namespace {
-
-const char kJavaCategory[] = "Java";
-
-// Boilerplate for safely converting Java data to TRACE_EVENT data.
-class TraceEventDataConverter {
- public:
-  TraceEventDataConverter(JNIEnv* env,
-                          jstring jname,
-                          jstring jarg)
-      : env_(env),
-      jname_(jname),
-      jarg_(jarg),
-      name_(env->GetStringUTFChars(jname, NULL)),
-      arg_(jarg ? env->GetStringUTFChars(jarg, NULL) : NULL) {
-  }
-  ~TraceEventDataConverter() {
-    env_->ReleaseStringUTFChars(jname_, name_);
-    if (jarg_)
-      env_->ReleaseStringUTFChars(jarg_, arg_);
-  }
-
-  // Return saves values to pass to TRACE_EVENT macros.
-  const char* name() { return name_; }
-  const char* arg_name() { return arg_ ? "arg" : NULL; }
-  const char* arg() { return arg_; }
-
- private:
-  JNIEnv* env_;
-  jstring jname_;
-  jstring jarg_;
-  const char* name_;
-  const char* arg_;
-
-  DISALLOW_COPY_AND_ASSIGN(TraceEventDataConverter);
-};
-
-}  // namespace
-
-static jboolean TraceEnabled(JNIEnv* env, jclass clazz) {
-  return base::debug::TraceLog::GetInstance()->IsEnabled();
-}
-
-static void Instant(JNIEnv* env, jclass clazz,
-                    jstring jname, jstring jarg) {
-  TraceEventDataConverter converter(env, jname, jarg);
-  if (converter.arg()) {
-    TRACE_EVENT_COPY_INSTANT1(kJavaCategory, converter.name(),
-                              converter.arg_name(), converter.arg());
-  } else {
-    TRACE_EVENT_COPY_INSTANT0(kJavaCategory, converter.name());
-  }
-}
-
-static void Begin(JNIEnv* env, jclass clazz,
-                  jstring jname, jstring jarg) {
-  TraceEventDataConverter converter(env, jname, jarg);
-  if (converter.arg()) {
-    TRACE_EVENT_COPY_BEGIN1(kJavaCategory, converter.name(),
-                       converter.arg_name(), converter.arg());
-  } else {
-    TRACE_EVENT_COPY_BEGIN0(kJavaCategory, converter.name());
-  }
-}
-
-static void End(JNIEnv* env, jclass clazz,
-                jstring jname, jstring jarg) {
-  TraceEventDataConverter converter(env, jname, jarg);
-  if (converter.arg()) {
-    TRACE_EVENT_COPY_END1(kJavaCategory, converter.name(),
-                     converter.arg_name(), converter.arg());
-  } else {
-    TRACE_EVENT_COPY_END0(kJavaCategory, converter.name());
-  }
-}
-
-bool RegisterTraceEvent(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}