Adds support for OpenSL ES based audio capture on Android

webrtc/modules/audio_device/android/build_info.cc

Index: webrtc/modules/audio_device/android/build_info.cc
diff --git a/webrtc/modules/audio_device/android/build_info.cc b/webrtc/modules/audio_device/android/build_info.cc
index 455c12f7fd0d5b5e37042f18d88f5d3dc689d347..3628e408e5cc714c1ad89e037f224e96760a6a22 100644
--- a/webrtc/modules/audio_device/android/build_info.cc
+++ b/webrtc/modules/audio_device/android/build_info.cc
@@ -50,8 +50,10 @@ std::string BuildInfo::GetBuildRelease() {
   return GetStringFromJava("getBuildRelease");
 }
 
-std::string BuildInfo::GetSdkVersion() {
-  return GetStringFromJava("getSdkVersion");
+SdkCode BuildInfo::GetSdkVersion() {
+  jmethodID id = j_build_info_.GetStaticMethodId("getSdkVersion", "()I");
+  jint j_version = j_build_info_.CallStaticIntMethod(id);
+  return static_cast<SdkCode>(j_version);
 }
 
 }  // namespace webrtc