Revert of Remove candidates when doing continual gathering

webrtc/api/jsepsessiondescription_unittest.cc

Index: webrtc/api/jsepsessiondescription_unittest.cc
diff --git a/webrtc/api/jsepsessiondescription_unittest.cc b/webrtc/api/jsepsessiondescription_unittest.cc
index 3d8751373116c42bcdcf8fece530800719e6d880..7868beaad36ac3a96a16f72f18cd086598200d03 100644
--- a/webrtc/api/jsepsessiondescription_unittest.cc
+++ b/webrtc/api/jsepsessiondescription_unittest.cc
@@ -109,7 +109,7 @@
   EXPECT_EQ(2u, jsep_desc_->number_of_mediasections());
 }
 
-// Test that we can add a candidate to a session description without MID.
+// Test that we can add a candidate to a session description.
 TEST_F(JsepSessionDescriptionTest, AddCandidateWithoutMid) {
   JsepIceCandidate jsep_candidate("", 0, candidate_);
   EXPECT_TRUE(jsep_desc_->AddCandidate(&jsep_candidate));
@@ -125,12 +125,9 @@
   EXPECT_EQ(0u, jsep_desc_->candidates(1)->count());
 }
 
-// Test that we can add and remove candidates to a session description with
-// MID. Removing candidates requires MID (transport_name).
-TEST_F(JsepSessionDescriptionTest, AddAndRemoveCandidatesWithMid) {
+TEST_F(JsepSessionDescriptionTest, AddCandidateWithMid) {
   // mid and m-line index don't match, in this case mid is preferred.
-  std::string mid = "video";
-  JsepIceCandidate jsep_candidate(mid, 0, candidate_);
+  JsepIceCandidate jsep_candidate("video", 0, candidate_);
   EXPECT_TRUE(jsep_desc_->AddCandidate(&jsep_candidate));
   EXPECT_EQ(0u, jsep_desc_->candidates(0)->count());
   const IceCandidateCollection* ice_candidates = jsep_desc_->candidates(1);
@@ -143,12 +140,6 @@
   EXPECT_TRUE(ice_candidate->candidate().IsEquivalent(candidate_));
   // The mline index should have been updated according to mid.
   EXPECT_EQ(1, ice_candidate->sdp_mline_index());
-
-  std::vector<cricket::Candidate> candidates(1, candidate_);
-  candidates[0].set_transport_name(mid);
-  EXPECT_EQ(1u, jsep_desc_->RemoveCandidates(candidates));
-  EXPECT_EQ(0u, jsep_desc_->candidates(0)->count());
-  EXPECT_EQ(0u, jsep_desc_->candidates(1)->count());
 }
 
 TEST_F(JsepSessionDescriptionTest, AddCandidateAlreadyHasUfrag) {