Move RTCP histograms from vie_channel to video channel stats proxies.

webrtc/video/end_to_end_tests.cc

Index: webrtc/video/end_to_end_tests.cc
diff --git a/webrtc/video/end_to_end_tests.cc b/webrtc/video/end_to_end_tests.cc
index 3f22b5229a06861ede93e7d482cf55d4cb4126e1..94a87d8864a64b108bfd723aec4e27c16466f953 100644
--- a/webrtc/video/end_to_end_tests.cc
+++ b/webrtc/video/end_to_end_tests.cc
@@ -2190,16 +2190,16 @@ void EndToEndTest::VerifyHistogramStats(bool use_rtx,
 
   EXPECT_EQ(1, test::NumHistogramSamples(
       "WebRTC.Video.NackPacketsSentPerMinute"));
-  EXPECT_EQ(1, test::NumHistogramSamples(
-      "WebRTC.Video.NackPacketsReceivedPerMinute"));
+  EXPECT_EQ(1, test::NumHistogramSamples(video_prefix +
+                                         "NackPacketsReceivedPerMinute"));
   EXPECT_EQ(1, test::NumHistogramSamples(
       "WebRTC.Video.FirPacketsSentPerMinute"));
-  EXPECT_EQ(1, test::NumHistogramSamples(
-      "WebRTC.Video.FirPacketsReceivedPerMinute"));
+  EXPECT_EQ(1, test::NumHistogramSamples(video_prefix +
+                                         "FirPacketsReceivedPerMinute"));
   EXPECT_EQ(1, test::NumHistogramSamples(
       "WebRTC.Video.PliPacketsSentPerMinute"));
-  EXPECT_EQ(1, test::NumHistogramSamples(
-      "WebRTC.Video.PliPacketsReceivedPerMinute"));
+  EXPECT_EQ(1, test::NumHistogramSamples(video_prefix +
+                                         "PliPacketsReceivedPerMinute"));
 
   EXPECT_EQ(
       1, test::NumHistogramSamples(video_prefix + "KeyFramesSentInPermille"));