media: Delete code checking for pre-JellyBean Android versions

media/audio/android/audio_manager_android.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 "media/audio/android/audio_manager_android.h"
 
 #include "base/android/build_info.h"
 #include "base/android/context_utils.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
@@ skipping 245 matching lines @@
   // device, i.e., this selection does also switch the output device.
   // All input and output streams will be affected by the device selection.
   if (!SetAudioDevice(device_id)) {
     LOG(ERROR) << "Unable to select audio device!";
     return NULL;
   }
 
   if (params.effects() != AudioParameters::NO_EFFECTS) {
     // Platform effects can only be enabled through the AudioRecord path.
     // An effect should only have been requested here if recommended by
-    // AudioManagerAndroid.shouldUse<Effect>.
-    //
-    // Creating this class requires Jelly Bean, which is already guaranteed by
-    // shouldUse<Effect>. Only DCHECK on that condition to allow tests to use
-    // the effect settings as a way to select the input path.
-    DCHECK_GE(base::android::BuildInfo::GetInstance()->sdk_int(), 16);
+    // AudioManagerAndroid#shouldUse...().
     DVLOG(1) << "Creating AudioRecordInputStream";
     return new AudioRecordInputStream(this, params);
   }
   DVLOG(1) << "Creating OpenSLESInputStream";
   return new OpenSLESInputStream(this, params);
 }
 
 // static
 bool AudioManagerAndroid::RegisterAudioManager(JNIEnv* env) {
   return RegisterNativesImpl(env);
@@ skipping 142 matching lines @@
   output_volume_override_ = volume;
 
   DCHECK(GetTaskRunner()->BelongsToCurrentThread());
   for (OutputStreams::iterator it = streams_.begin();
        it != streams_.end(); ++it) {
     (*it)->SetVolume(volume);
   }
 }
 
 }  // namespace media