Add a new incremental parsing API

Change-Id: I6b921766836d58df0281fb23b2add3f62a478e14

webm_parser/tests/bit_utils_test.cc

@@ -0,0 +1,24 @@
+// Copyright (c) 2016 The WebM project 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 root of the source
+// tree. An additional intellectual property rights grant can be found
+// in the file PATENTS.  All contributing project authors may
+// be found in the AUTHORS file in the root of the source tree.
+#include "src/bit_utils.h"
+
+#include "gtest/gtest.h"
+
+using webm::CountLeadingZeros;
+
+namespace {
+
+class BitUtilsTest : public testing::Test {};
+
+TEST_F(BitUtilsTest, CountLeadingZeros) {
+  EXPECT_EQ(8, CountLeadingZeros(0x00));
+  EXPECT_EQ(4, CountLeadingZeros(0x0f));
+  EXPECT_EQ(0, CountLeadingZeros(0xf0));
+}
+
+}  // namespace