Remove the `createDecoder(String)` overload

This method has been deprecated since 2018-07:
https://webrtc-review.googlesource.com/c/src/+/88368/

It is never called by WebRTC itself.

Custom `VideoDecoderFactory` implementations overriding this method can
switch to the overload accepting a `VideoCodecInfo` object.

This is also adding a `toString()` implementation to `VideoCodecInfo`,
to make logging of the value more useful.

Bug: webrtc:7925
Change-Id: I70ec07a0cd4ffa07d165c9851e393439fcc5870b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/221960
Commit-Queue: Xavier Lepaul‎ <xalep@webrtc.org>
Reviewed-by: Paulina Hensman <phensman@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34302}

sdk/android/api/org/webrtc/SoftwareVideoDecoderFactory.java

diff --git a/sdk/android/api/org/webrtc/SoftwareVideoDecoderFactory.java b/sdk/android/api/org/webrtc/SoftwareVideoDecoderFactory.java
index 0c9dcbe..c59db3b 100644
--- a/sdk/android/api/org/webrtc/SoftwareVideoDecoderFactory.java
+++ b/sdk/android/api/org/webrtc/SoftwareVideoDecoderFactory.java
@@ -16,13 +16,6 @@
 import java.util.List;
 
 public class SoftwareVideoDecoderFactory implements VideoDecoderFactory {
-  @Deprecated
-  @Nullable
-  @Override
-  public VideoDecoder createDecoder(String codecType) {
-    return createDecoder(new VideoCodecInfo(codecType, new HashMap<>()));
-  }
-
   @Nullable
   @Override
   public VideoDecoder createDecoder(VideoCodecInfo codecInfo) {

sdk/android/api/org/webrtc/VideoCodecInfo.java

diff --git a/sdk/android/api/org/webrtc/VideoCodecInfo.java b/sdk/android/api/org/webrtc/VideoCodecInfo.java
index 8dd9295..e11782d 100644
--- a/sdk/android/api/org/webrtc/VideoCodecInfo.java
+++ b/sdk/android/api/org/webrtc/VideoCodecInfo.java
@@ -69,6 +69,11 @@
     return Arrays.hashCode(values);
   }
 
+  @Override
+  public String toString() {
+    return "VideoCodec{" + name + " " + params + "}";
+  }
+
   @CalledByNative
   String getName() {
     return name;

sdk/android/api/org/webrtc/VideoDecoderFactory.java

diff --git a/sdk/android/api/org/webrtc/VideoDecoderFactory.java b/sdk/android/api/org/webrtc/VideoDecoderFactory.java
index 2dd0967..3f0168f 100644
--- a/sdk/android/api/org/webrtc/VideoDecoderFactory.java
+++ b/sdk/android/api/org/webrtc/VideoDecoderFactory.java
@@ -18,18 +18,7 @@
    * Creates a VideoDecoder for the given codec. Supports the same codecs supported by
    * VideoEncoderFactory.
    */
-  @Deprecated
-  @Nullable
-  default VideoDecoder createDecoder(String codecType) {
-    throw new UnsupportedOperationException("Deprecated and not implemented.");
-  }
-
-  /** Creates a decoder for the given video codec. */
-  @Nullable
-  @CalledByNative
-  default VideoDecoder createDecoder(VideoCodecInfo info) {
-    return createDecoder(info.getName());
-  }
+  @Nullable @CalledByNative VideoDecoder createDecoder(VideoCodecInfo info);
 
   /**
    * Enumerates the list of supported video codecs.