Upstream WebMediaPlayerAndroid as WebKit::WebMediaPlayer implementation on android.

webkit/media/webmediaplayer_util.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.
+
+#ifndef WEBKIT_MEDIA_WEBMEDIAPLAYER_UTIL_H_
+#define WEBKIT_MEDIA_WEBMEDIAPLAYER_UTIL_H_
+
+#include "base/time.h"
+
+namespace {
+
+// Platform independent method for converting and rounding floating point
+// seconds to an int64 timestamp.
+//
+// Refer to https://bugs.webkit.org/show_bug.cgi?id=52697 for details.
+base::TimeDelta ConvertSecondsToTimestamp(float seconds) {

[scherkus (not reviewing), 2012/04/21 03:02:05]

let's get a .cc for this

[qinmin, 2012/04/23 18:57:04]

Done.

+  float microseconds = seconds * base::Time::kMicrosecondsPerSecond;
+  float integer = ceilf(microseconds);
+  float difference = integer - microseconds;
+
+  // Round down if difference is large enough.
+  if ((microseconds > 0 && difference > 0.5f) ||
+      (microseconds <= 0 && difference >= 0.5f)) {
+    integer -= 1.0f;
+  }
+
+  // Now we can safely cast to int64 microseconds.
+  return base::TimeDelta::FromMicroseconds(static_cast<int64>(integer));
+}
+
+}  // namespace
+
+#endif  // WEBKIT_MEDIA_WEBMEDIAPLAYER_UTIL_H_