Clean up histogram'd media enum max values.

media/audio/audio_output_resampler.cc

Index: media/audio/audio_output_resampler.cc
diff --git a/media/audio/audio_output_resampler.cc b/media/audio/audio_output_resampler.cc
index e6fcc56560484308bbb495984a63f8e3309a6985..648cf1317f33543333071a0bd8517336a6111f83 100644
--- a/media/audio/audio_output_resampler.cc
+++ b/media/audio/audio_output_resampler.cc
@@ -77,7 +77,7 @@ static void RecordStats(const AudioParameters& output_params) {
       limits::kMaxBitsPerSample);
   UMA_HISTOGRAM_ENUMERATION(
       "Media.HardwareAudioChannelLayout", output_params.channel_layout(),
-      CHANNEL_LAYOUT_MAX);
+      CHANNEL_LAYOUT_MAX + 1);
   UMA_HISTOGRAM_ENUMERATION(

[rileya (GONE FROM CHROMIUM), 2014/01/29 21:12:20]

Same here. More in the Fallback function below.

       "Media.HardwareAudioChannelCount", output_params.channels(),
       limits::kMaxChannels);
@@ -85,7 +85,7 @@ static void RecordStats(const AudioParameters& output_params) {
   AudioSampleRate asr = media::AsAudioSampleRate(output_params.sample_rate());
   if (asr != kUnexpectedAudioSampleRate) {
     UMA_HISTOGRAM_ENUMERATION(
-        "Media.HardwareAudioSamplesPerSecond", asr, kUnexpectedAudioSampleRate);
+        "Media.HardwareAudioSamplesPerSecond", asr, kAudioSampleRateMax + 1);
   } else {
     UMA_HISTOGRAM_COUNTS(
         "Media.HardwareAudioSamplesPerSecondUnexpected",
@@ -101,7 +101,7 @@ static void RecordFallbackStats(const AudioParameters& output_params) {
       output_params.bits_per_sample(), limits::kMaxBitsPerSample);
   UMA_HISTOGRAM_ENUMERATION(
       "Media.FallbackHardwareAudioChannelLayout",
-      output_params.channel_layout(), CHANNEL_LAYOUT_MAX);
+      output_params.channel_layout(), CHANNEL_LAYOUT_MAX + 1);
   UMA_HISTOGRAM_ENUMERATION(
       "Media.FallbackHardwareAudioChannelCount",
       output_params.channels(), limits::kMaxChannels);
@@ -110,7 +110,7 @@ static void RecordFallbackStats(const AudioParameters& output_params) {
   if (asr != kUnexpectedAudioSampleRate) {
     UMA_HISTOGRAM_ENUMERATION(
         "Media.FallbackHardwareAudioSamplesPerSecond",
-        asr, kUnexpectedAudioSampleRate);
+        asr, kAudioSampleRateMax);

[Ami GONE FROM CHROMIUM, 2014/01/29 21:29:02]

If you had a PRESUBMIT it would bitch about this.  
Per elsewhere hopefully this can become Max+1.

   } else {
     UMA_HISTOGRAM_COUNTS(
         "Media.FallbackHardwareAudioSamplesPerSecondUnexpected",