Change to interface to M19, add a few more test cases to test_audio.

ppapi/tests/test_audio.cc

 // 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.
 
 #include "ppapi/tests/test_audio.h"
 
 #include <string.h>
 
 #include "ppapi/c/ppb_audio_config.h"
 #include "ppapi/c/ppb_audio.h"
@@ skipping 34 matching lines @@
 // frame counts.
 std::string TestAudio::TestCreation() {
   static const PP_AudioSampleRate kSampleRates[] = {
     PP_AUDIOSAMPLERATE_44100,
     PP_AUDIOSAMPLERATE_48000
   };
   static const uint32_t kRequestFrameCounts[] = {
     PP_AUDIOMINSAMPLEFRAMECOUNT,
     PP_AUDIOMAXSAMPLEFRAMECOUNT,
     // Include some "okay-looking" frame counts; check their validity below.
+    PP_AUDIOSAMPLERATE_44100 / 100,  // 10ms @ 44.1kHz
+    PP_AUDIOSAMPLERATE_48000 / 100,  // 10ms @ 48kHz
+    2 * PP_AUDIOSAMPLERATE_44100 / 100,  // 20ms @ 44.1kHz
+    2 * PP_AUDIOSAMPLERATE_48000 / 100,  // 20ms @ 48kHz
     1024,
     2048,
     4096
   };
-
+  PP_AudioSampleRate sample_rate = audio_config_interface_->RecommendSampleRate(
+      instance_->pp_instance());
+  ASSERT_TRUE(sample_rate == PP_AUDIOSAMPLERATE_NONE ||
+              sample_rate == PP_AUDIOSAMPLERATE_44100 ||
+              sample_rate == PP_AUDIOSAMPLERATE_48000);
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kSampleRates); i++) {
     PP_AudioSampleRate sample_rate = kSampleRates[i];
 
     for (size_t j = 0; j < ARRAYSIZE_UNSAFE(kRequestFrameCounts); j++) {
       // Make a config, create the audio resource, and release the config.
       uint32_t request_frame_count = kRequestFrameCounts[j];
       uint32_t frame_count = audio_config_interface_->RecommendSampleFrameCount(
           instance_->pp_instance(), sample_rate, request_frame_count);
       PP_Resource ac = audio_config_interface_->CreateStereo16Bit(
           instance_->pp_instance(), sample_rate, frame_count);
@@ skipping 89 matching lines @@
   // Test the other functions with an invalid audio resource.
   ASSERT_FALSE(audio_interface_->IsAudio(0));
   ASSERT_EQ(0, audio_interface_->GetCurrentConfig(0));
   ASSERT_FALSE(audio_interface_->StartPlayback(0));
   ASSERT_FALSE(audio_interface_->StopPlayback(0));
 
   PASS();
 }
 
 // TODO(viettrungluu): Test that callbacks get called, playback happens, etc.