Revert of Remove ignored return code from modules.

webrtc/modules/video_coding/video_receiver_unittest.cc

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 34 matching lines @@
   }
 
   void InsertAndVerifyPaddingFrame(const uint8_t* payload,
                                    WebRtcRTPHeader* header) {
     ASSERT_TRUE(header != NULL);
     for (int j = 0; j < 5; ++j) {
       // Padding only packets are passed to the VCM with payload size 0.
       EXPECT_EQ(0, receiver_->IncomingPacket(payload, 0, *header));
       ++header->header.sequenceNumber;
     }
-    receiver_->Process();
+    EXPECT_EQ(0, receiver_->Process());
     EXPECT_CALL(decoder_, Decode(_, _, _, _, _)).Times(0);
     EXPECT_EQ(VCM_FRAME_NOT_READY, receiver_->Decode(100));
   }
 
   void InsertAndVerifyDecodableFrame(const uint8_t* payload,
                                      size_t length,
                                      WebRtcRTPHeader* header) {
     ASSERT_TRUE(header != NULL);
     EXPECT_EQ(0, receiver_->IncomingPacket(payload, length, *header));
     ++header->header.sequenceNumber;
     EXPECT_CALL(packet_request_callback_, ResendPackets(_, _)).Times(0);
-    receiver_->Process();;
+    EXPECT_EQ(0, receiver_->Process());
     EXPECT_CALL(decoder_, Decode(_, _, _, _, _)).Times(1);
     EXPECT_EQ(0, receiver_->Decode(100));
   }
 
   SimulatedClock clock_;
   NullEventFactory event_factory_;
   VideoCodec settings_;
   NiceMock<MockVideoDecoder> decoder_;
   NiceMock<MockPacketRequestCallback> packet_request_callback_;
 
@@ skipping 122 matching lines @@
 TEST_F(TestVideoReceiver, ReceiverDelay) {
   EXPECT_EQ(0, receiver_->SetMinReceiverDelay(0));
   EXPECT_EQ(0, receiver_->SetMinReceiverDelay(5000));
   EXPECT_EQ(-1, receiver_->SetMinReceiverDelay(-100));
   EXPECT_EQ(-1, receiver_->SetMinReceiverDelay(10010));
 }
 
 }  // namespace
 }  // namespace vcm
 }  // namespace webrtc