Add NetLog event for invalid Http/2 response header

net/spdy/chromium/header_coalescer_test.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/spdy/chromium/header_coalescer.h"
 
 #include <vector>
 
+#include "net/log/net_log_with_source.h"
 #include "net/spdy/platform/api/spdy_string.h"
 #include "net/spdy/platform/api/spdy_string_utils.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::ElementsAre;
 using ::testing::Pair;
 
 namespace net {
 namespace test {
 
 class HeaderCoalescerTest : public ::testing::Test {
  public:
+  HeaderCoalescerTest() : header_coalescer_(NetLogWithSource()) {}
+
  protected:
   HeaderCoalescer header_coalescer_;
 };
 
 TEST_F(HeaderCoalescerTest, CorrectHeaders) {
   header_coalescer_.OnHeader(":foo", "bar");
   header_coalescer_.OnHeader("baz", "qux");
   EXPECT_FALSE(header_coalescer_.error_seen());
 
   SpdyHeaderBlock header_block = header_coalescer_.release_headers();
@@ skipping 99 matching lines @@
       header_block,
       ElementsAre(Pair("foo_0", SpdyStringPiece(header_values[0].data(),
                                                 header_values[0].size())),
                   Pair("foo_1", SpdyStringPiece(header_values[1].data(),
                                                 header_values[1].size()))));
 }
 
 }  // namespace test
 
 }  // namespace net