Adding full initial version of delay estimation functionality in echo canceller 3

webrtc/modules/audio_processing/aec3/render_delay_controller_unittest.cc

Index: webrtc/modules/audio_processing/aec3/render_delay_controller_unittest.cc
diff --git a/webrtc/modules/audio_processing/aec3/render_delay_controller_unittest.cc b/webrtc/modules/audio_processing/aec3/render_delay_controller_unittest.cc
index 12ae2ec6e3527b897856654501b536afc9b396c7..b666fb8199e14d6044c31e23caf9509bb05f0192 100644
--- a/webrtc/modules/audio_processing/aec3/render_delay_controller_unittest.cc
+++ b/webrtc/modules/audio_processing/aec3/render_delay_controller_unittest.cc
@@ -105,8 +105,7 @@ TEST(RenderDelayController, BasicApiCalls) {
 
 // Verifies that the RenderDelayController is able to align the signals for
 // simple timeshifts between the signals.
-// TODO(peah): Activate the unittest once the required code has been landed.
-TEST(RenderDelayController, DISABLED_Alignment) {
+TEST(RenderDelayController, Alignment) {
   Random random_generator(42U);
   std::vector<float> render_block(kBlockSize, 0.f);
   std::vector<float> capture_block(kBlockSize, 0.f);
@@ -148,8 +147,7 @@ TEST(RenderDelayController, DISABLED_Alignment) {
 
 // Verifies that the RenderDelayController is able to align the signals for
 // simple timeshifts between the signals when there is jitter in the API calls.
-// TODO(peah): Activate the unittest once the required code has been landed.
-TEST(RenderDelayController, DISABLED_AlignmentWithJitter) {
+TEST(RenderDelayController, AlignmentWithJitter) {
   Random random_generator(42U);
   std::vector<float> render_block(kBlockSize, 0.f);
   std::vector<float> capture_block(kBlockSize, 0.f);