Convert media constants to constexpr.

media/base/audio_splicer_unittest.cc

Index: media/base/audio_splicer_unittest.cc
diff --git a/media/base/audio_splicer_unittest.cc b/media/base/audio_splicer_unittest.cc
index f7fc79fe9a9e0c01e16807a54178242cdb3e7758..de674d70ce8fb95661a1890c86b42670473dba17 100644
--- a/media/base/audio_splicer_unittest.cc
+++ b/media/base/audio_splicer_unittest.cc
@@ -434,7 +434,7 @@ TEST_F(AudioSplicerTest, PartialOverlapCrossfade) {
   EXPECT_FALSE(splicer_.HasNextBuffer());
 
   // |overlapping_buffer| completes the splice.
-  splicer_.SetSpliceTimestamp(kNoTimestamp());
+  splicer_.SetSpliceTimestamp(kNoTimestamp);
   EXPECT_TRUE(AddInput(overlapping_buffer));
   ASSERT_TRUE(splicer_.HasNextBuffer());
 
@@ -510,7 +510,7 @@ TEST_F(AudioSplicerTest, PartialOverlapCrossfadeEndOfStream) {
 
   // |overlapping_buffer| should not have enough data to complete the splice, so
   // ensure output is not available.
-  splicer_.SetSpliceTimestamp(kNoTimestamp());
+  splicer_.SetSpliceTimestamp(kNoTimestamp);
   EXPECT_TRUE(AddInput(overlapping_buffer));
   EXPECT_FALSE(splicer_.HasNextBuffer());
 
@@ -570,7 +570,7 @@ TEST_F(AudioSplicerTest, PartialOverlapCrossfadeShortPreSplice) {
   EXPECT_FALSE(splicer_.HasNextBuffer());
 
   // |overlapping_buffer| completes the splice.
-  splicer_.SetSpliceTimestamp(kNoTimestamp());
+  splicer_.SetSpliceTimestamp(kNoTimestamp);
   EXPECT_TRUE(AddInput(overlapping_buffer));
 
   const int kExpectedPreSpliceSize = 55;
@@ -636,7 +636,7 @@ TEST_F(AudioSplicerTest, IncorrectlyMarkedSplice) {
 
   // |second_buffer| should complete the supposed splice, so ensure output is
   // now available.
-  splicer_.SetSpliceTimestamp(kNoTimestamp());
+  splicer_.SetSpliceTimestamp(kNoTimestamp);
   EXPECT_TRUE(AddInput(second_buffer));
 
   VerifyNextBuffer(first_buffer);
@@ -677,7 +677,7 @@ TEST_F(AudioSplicerTest, IncorrectlyMarkedSpliceWithGap) {
   // Do not add |gap_buffer|.
 
   // |second_buffer| will complete the supposed splice.
-  splicer_.SetSpliceTimestamp(kNoTimestamp());
+  splicer_.SetSpliceTimestamp(kNoTimestamp);
   EXPECT_TRUE(AddInput(second_buffer));
 
   VerifyNextBuffer(gap_buffer);
@@ -719,7 +719,7 @@ TEST_F(AudioSplicerTest, IncorrectlyMarkedSpliceWithBadGap) {
   // Do not add |gap_buffer|.
 
   // |second_buffer| will complete the supposed splice.
-  splicer_.SetSpliceTimestamp(kNoTimestamp());
+  splicer_.SetSpliceTimestamp(kNoTimestamp);
   EXPECT_FALSE(AddInput(second_buffer));
 }
 
@@ -746,7 +746,7 @@ TEST_F(AudioSplicerTest, IncorrectlyMarkedPastSplice) {
   // |third_buffer| will complete the supposed splice.  The buffer size is set
   // such that unchecked the splicer would try to trim off a negative number of
   // frames.
-  splicer_.SetSpliceTimestamp(kNoTimestamp());
+  splicer_.SetSpliceTimestamp(kNoTimestamp);
   scoped_refptr<AudioBuffer> third_buffer =
       GetNextInputBuffer(0.0f, kBufferSize * 10);
   third_buffer->set_timestamp(base::TimeDelta());