Revert of RTCRtpReceiver.getContributingSources() added.

content/shell/test_runner/mock_webrtc_peer_connection_handler.cc

Index: content/shell/test_runner/mock_webrtc_peer_connection_handler.cc
diff --git a/content/shell/test_runner/mock_webrtc_peer_connection_handler.cc b/content/shell/test_runner/mock_webrtc_peer_connection_handler.cc
index 32d2ca600cc4e79bc22aedcd40ce997c96c5db2d..c8add5d4b1e997546f6072862e72a5f192831657 100644
--- a/content/shell/test_runner/mock_webrtc_peer_connection_handler.cc
+++ b/content/shell/test_runner/mock_webrtc_peer_connection_handler.cc
@@ -12,7 +12,6 @@
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
-#include "base/memory/ptr_util.h"
 #include "content/shell/test_runner/mock_webrtc_data_channel_handler.h"
 #include "content/shell/test_runner/mock_webrtc_dtmf_sender_handler.h"
 #include "content/shell/test_runner/test_interfaces.h"
@@ -24,7 +23,6 @@
 #include "third_party/WebKit/public/platform/WebRTCDataChannelInit.h"
 #include "third_party/WebKit/public/platform/WebRTCOfferOptions.h"
 #include "third_party/WebKit/public/platform/WebRTCPeerConnectionHandlerClient.h"
-#include "third_party/WebKit/public/platform/WebRTCRtpContributingSource.h"
 #include "third_party/WebKit/public/platform/WebRTCRtpReceiver.h"
 #include "third_party/WebKit/public/platform/WebRTCStatsResponse.h"
 #include "third_party/WebKit/public/platform/WebRTCVoidRequest.h"
@@ -239,81 +237,18 @@
   size_t i_;
 };
 
-class MockWebRTCRtpContributingSource
-    : public blink::WebRTCRtpContributingSource {
- public:
-  MockWebRTCRtpContributingSource(
-      blink::WebRTCRtpContributingSourceType source_type,
-      double timestamp_ms,
-      uint32_t source)
-      : source_type_(source_type),
-        timestamp_ms_(timestamp_ms),
-        source_(source) {}
-  ~MockWebRTCRtpContributingSource() override {}
-
-  blink::WebRTCRtpContributingSourceType SourceType() const override {
-    return source_type_;
-  }
-  double TimestampMs() const override { return timestamp_ms_; }
-  uint32_t Source() const override { return source_; }
-
- private:
-  blink::WebRTCRtpContributingSourceType source_type_;
-  double timestamp_ms_;
-  uint32_t source_;
-};
-
 class MockWebRTCRtpReceiver : public blink::WebRTCRtpReceiver {
  public:
   MockWebRTCRtpReceiver(uintptr_t id, const blink::WebMediaStreamTrack& track)
-      : id_(id), track_(track), num_packets_(0) {}
+      : id_(id), track_(track) {}
   ~MockWebRTCRtpReceiver() override {}
 
   uintptr_t Id() const override { return id_; }
   const blink::WebMediaStreamTrack& Track() const override { return track_; }
 
-  // Every time called, mocks that a new packet has arrived updating the i-th
-  // CSRC such that the |kNumCSRCsActive| latest updated CSRCs are returned. "i"
-  // is the sequence number modulo number of CSRCs. Also returns an SSRC with
-  // the latest timestamp. For example, if 2 out of 3 CSRCs should be active,
-  // this will return the following "(type, source, timestamp)":
-  // - 1st call: { (CSRC, 0, 0), (SSRC, 0, 0) }
-  // - 2nd call: { (CSRC, 0, 0000), (CSRC, 1, 5000), (SSRC, 0, 5000) }
-  // - 3rd call: { (CSRC, 1, 5000), (CSRC, 2, 10000), (SSRC, 0, 10000) }
-  // - 4th call: { (CSRC, 2, 10000), (CSRC, 0, 15000), (SSRC, 0, 15000) }
-  // RTCPeerConnection-getReceivers.html depends on this behavior.
-  blink::WebVector<std::unique_ptr<blink::WebRTCRtpContributingSource>>
-  GetSources() override {
-    ++num_packets_;
-    size_t num_csrcs = std::min(kNumCSRCsActive, num_packets_);
-    blink::WebVector<std::unique_ptr<blink::WebRTCRtpContributingSource>>
-        contributing_sources(num_csrcs + 1);
-    for (size_t i = 0; i < num_csrcs; ++i) {
-      size_t sequence_number = num_packets_ - num_csrcs + i;
-      contributing_sources[i] =
-          base::MakeUnique<MockWebRTCRtpContributingSource>(
-              blink::WebRTCRtpContributingSourceType::CSRC,
-              // Return value should include timestamps for the last 10 seconds,
-              // we pretend |10000.0 / kNumCSRCsActive| milliseconds have passed
-              // per packet in the sequence, starting from 0. This is not
-              // relative to any real clock.
-              sequence_number * 10000.0 / kNumCSRCsActive,
-              sequence_number % kNumCSRCs);
-    }
-    contributing_sources[num_csrcs] =
-        base::MakeUnique<MockWebRTCRtpContributingSource>(
-            blink::WebRTCRtpContributingSourceType::SSRC,
-            contributing_sources[num_csrcs - 1]->TimestampMs(), 0);
-    return contributing_sources;
-  }
-
  private:
-  const size_t kNumCSRCs = 3;
-  const size_t kNumCSRCsActive = 2;
-
   uintptr_t id_;
   blink::WebMediaStreamTrack track_;
-  size_t num_packets_;
 };
 
 }  // namespace