Improve logging for macOS input stream creation failures.

R=tguilbert

Bug: 1128458
Change-Id: I339bc8eab6770da2db79b89800f6022a6680707d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2424651
Commit-Queue: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Thomas Guilbert <tguilbert@chromium.org>
Auto-Submit: Dale Curtis <dalecurtis@chromium.org>
Reviewed-by: Thomas Guilbert <tguilbert@chromium.org>
Cr-Commit-Position: refs/heads/master@{#809610}

media/audio/mac/audio_low_latency_input_mac.cc

@@ -436,8 +436,9 @@ bool AUAudioInputStream::OpenAUHAL() {
   AudioStreamBasicDescription input_device_format = {0};
   GetInputDeviceStreamFormat(audio_unit_, &input_device_format);
   if (input_device_format.mSampleRate != format_.mSampleRate) {
-    LOG(ERROR)
-        << "Input device's sample rate does not match the client's sample rate";
+    LOG(ERROR) << "Input device's sample rate does not match the client's "
+                  "sample rate; input_device_format="
+               << input_device_format;
     result = kAudioUnitErr_FormatNotSupported;
     HandleError(result);
     return false;