Android: Replace webrtc_jni namespace with nested jni namespace

webrtc/sdk/android/src/jni/videodecoderfactorywrapper.h

Index: webrtc/sdk/android/src/jni/videodecoderfactorywrapper.h
diff --git a/webrtc/sdk/android/src/jni/videodecoderfactorywrapper.h b/webrtc/sdk/android/src/jni/videodecoderfactorywrapper.h
index 0e98a9550d92bfff6c69407dd2bab8faa62485e0..43c86cbd294e51e157596dba0515128a80583d6e 100644
--- a/webrtc/sdk/android/src/jni/videodecoderfactorywrapper.h
+++ b/webrtc/sdk/android/src/jni/videodecoderfactorywrapper.h
@@ -16,7 +16,8 @@
 #include "webrtc/media/engine/webrtcvideodecoderfactory.h"
 #include "webrtc/sdk/android/src/jni/jni_helpers.h"
 
-namespace webrtc_jni {
+namespace webrtc {
+namespace jni {
 
 // Wrapper for Java VideoDecoderFactory class. Delegates method calls through
 // JNI and wraps the decoder inside VideoDecoderWrapper.
@@ -26,15 +27,15 @@ class VideoDecoderFactoryWrapper : public cricket::WebRtcVideoDecoderFactory {
 
   // Caller takes the ownership of the returned object and it should be released
   // by calling DestroyVideoDecoder().
-  webrtc::VideoDecoder* CreateVideoDecoder(
-      webrtc::VideoCodecType type) override;
-  void DestroyVideoDecoder(webrtc::VideoDecoder* decoder) override;
+  VideoDecoder* CreateVideoDecoder(VideoCodecType type) override;
+  void DestroyVideoDecoder(VideoDecoder* decoder) override;
 
  private:
   const ScopedGlobalRef<jobject> decoder_factory_;
   jmethodID create_decoder_method_;
 };
 
-}  // namespace webrtc_jni
+}  // namespace jni
+}  // namespace webrtc
 
 #endif  // WEBRTC_SDK_ANDROID_SRC_JNI_VIDEODECODERFACTORYWRAPPER_H_