Name SimulcastEncoderApdater on InitEncode.

webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter_unittest.cc

Index: webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter_unittest.cc
diff --git a/webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter_unittest.cc b/webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter_unittest.cc
index 1340af3e6ab03c2b9a11d207532e5505211ed9b9..684e214c1ab58d87a3603951544fb602b2bcc2fe 100644
--- a/webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter_unittest.cc
+++ b/webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter_unittest.cc
@@ -152,6 +152,8 @@ class MockVideoEncoder : public VideoEncoder {
     supports_native_handle_ = enabled;
   }
 
+  MOCK_CONST_METHOD0(ImplementationName, const char*());
+
  private:
   bool supports_native_handle_ = false;
   VideoCodec codec_;
@@ -162,6 +164,10 @@ class MockVideoEncoderFactory : public VideoEncoderFactory {
  public:
   VideoEncoder* Create() override {
     MockVideoEncoder* encoder = new MockVideoEncoder();
+    const char* encoder_name = encoder_names_.empty()
+                                   ? "codec_implementation_name"
+                                   : encoder_names_[encoders_.size()];
+    ON_CALL(*encoder, ImplementationName()).WillByDefault(Return(encoder_name));
     encoders_.push_back(encoder);
     return encoder;
   }
@@ -171,9 +177,13 @@ class MockVideoEncoderFactory : public VideoEncoderFactory {
   virtual ~MockVideoEncoderFactory() {}
 
   const std::vector<MockVideoEncoder*>& encoders() const { return encoders_; }
+  void SetEncoderNames(const std::vector<const char*>& encoder_names) {
+    encoder_names_ = encoder_names;
+  }
 
  private:
   std::vector<MockVideoEncoder*> encoders_;
+  std::vector<const char*> encoder_names_;
 };
 
 class TestSimulcastEncoderAdapterFakeHelper {
@@ -397,6 +407,20 @@ TEST_F(TestSimulcastEncoderAdapterFake, SupportsNativeHandleForSingleStreams) {
   EXPECT_FALSE(adapter_->SupportsNativeHandle());
 }
 
+TEST_F(TestSimulcastEncoderAdapterFake, SupportsImplementationName) {
+  EXPECT_STREQ("SimulcastEncoderAdapter", adapter_->ImplementationName());
+  TestVp8Simulcast::DefaultSettings(
+      &codec_, static_cast<const int*>(kTestTemporalLayerProfile));
+  std::vector<const char*> encoder_names;
+  encoder_names.push_back("codec1");
+  encoder_names.push_back("codec2");
+  encoder_names.push_back("codec3");
+  helper_->factory()->SetEncoderNames(encoder_names);
+  EXPECT_EQ(0, adapter_->InitEncode(&codec_, 1, 1200));
+  EXPECT_STREQ("SimulcastEncoderAdapter (codec1, codec2, codec3)",
+               adapter_->ImplementationName());
+}
+
 TEST_F(TestSimulcastEncoderAdapterFake,
        SupportsNativeHandleDisabledForMultipleStreams) {
   // TODO(pbos): Implement actual test (verify that it works) when implemented