Drop histograms suffixes for the SpdyCwnd field trial.

chrome/renderer/page_load_histograms.cc

Index: chrome/renderer/page_load_histograms.cc
diff --git a/chrome/renderer/page_load_histograms.cc b/chrome/renderer/page_load_histograms.cc
index f708e2d5784fd832bd940273be4885a33880ea16..588df0732d069d0e3d7cb1821114652deabbadfb 100644
--- a/chrome/renderer/page_load_histograms.cc
+++ b/chrome/renderer/page_load_histograms.cc
@@ -663,30 +663,6 @@ void DumpDeprecatedHistograms(const WebPerformance& performance,
         break;
     }
   }
-
-  // Record SpdyCwnd results.
-  if (document_state->was_fetched_via_spdy()) {
-    switch (load_type) {
-      case DocumentState::LINK_LOAD_NORMAL:
-        PLT_HISTOGRAM("PLT.BeginToFinish_LinkLoadNormal_cwndDynamic",
-                      begin_to_finish_all_loads);
-        PLT_HISTOGRAM("PLT.StartToFinish_LinkLoadNormal_cwndDynamic",
-                      start_to_finish_all_loads);
-        PLT_HISTOGRAM("PLT.StartToCommit_LinkLoadNormal_cwndDynamic",
-                      start_to_commit);
-        break;
-      case DocumentState::NORMAL_LOAD:
-        PLT_HISTOGRAM("PLT.BeginToFinish_NormalLoad_cwndDynamic",
-                      begin_to_finish_all_loads);
-        PLT_HISTOGRAM("PLT.StartToFinish_NormalLoad_cwndDynamic",
-                      start_to_finish_all_loads);
-        PLT_HISTOGRAM("PLT.StartToCommit_NormalLoad_cwndDynamic",
-                      start_to_commit);
-        break;
-      default:
-        break;
-    }
-  }
 }
 
 }  // namespace