Use std::function instead of base::Callback in net/http2/.

net/http2/decoder/payload_decoders/push_promise_payload_decoder_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/http2/decoder/payload_decoders/push_promise_payload_decoder.h"
 
 #include <stddef.h>
 
 #include <string>
 
-#include "base/bind.h"
 #include "base/logging.h"
 #include "net/http2/decoder/frame_parts.h"
 #include "net/http2/decoder/frame_parts_collector.h"
 #include "net/http2/decoder/http2_frame_decoder_listener.h"
 #include "net/http2/decoder/payload_decoders/payload_decoder_base_test_util.h"
 #include "net/http2/http2_constants.h"
 #include "net/http2/http2_structures_test_util.h"
 #include "net/http2/tools/http2_frame_builder.h"
 #include "net/http2/tools/http2_random.h"
 #include "net/http2/tools/random_decoder_test.h"
@@ skipping 67 matching lines @@
   void OnFrameSizeError(const Http2FrameHeader& header) override {
     VLOG(1) << "OnFrameSizeError: " << header;
     FrameError(header)->OnFrameSizeError(header);
   }
 };
 
 class PushPromisePayloadDecoderTest
     : public AbstractPaddablePayloadDecoderTest<PushPromisePayloadDecoder,
                                                 PushPromisePayloadDecoderPeer,
                                                 Listener> {
- public:
-  static bool ApproveSizeForTruncated(size_t size) {
-    return size != Http2PushPromiseFields::EncodedSize();
-  }
 };
 
 INSTANTIATE_TEST_CASE_P(VariousPadLengths,
                         PushPromisePayloadDecoderTest,
                         ::testing::Values(0, 1, 2, 3, 4, 254, 255, 256));
 
 // Payload contains the required Http2PushPromiseFields, followed by some
 // (fake) HPACK payload.
 TEST_P(PushPromisePayloadDecoderTest, VariousHpackPayloadSizes) {
   for (size_t hpack_size : {0, 1, 2, 3, 255, 256, 1024}) {
@@ skipping 11 matching lines @@
     FrameParts expected(frame_header, hpack_payload, total_pad_length_);
     expected.opt_push_promise = push_promise;
     EXPECT_TRUE(
         DecodePayloadAndValidateSeveralWays(frame_builder_.buffer(), expected));
   }
 }
 
 // Confirm we get an error if the payload is not long enough for the required
 // portion of the payload, regardless of the amount of (valid) padding.
 TEST_P(PushPromisePayloadDecoderTest, Truncated) {
+  auto approve_size = [](size_t size) {
+    return size != Http2PushPromiseFields::EncodedSize();
+  };
   Http2PushPromiseFields push_promise{RandStreamId()};
   Http2FrameBuilder fb;
   fb.Append(push_promise);
-  EXPECT_TRUE(VerifyDetectsMultipleFrameSizeErrors(
-      0, fb.buffer(),
-      base::Bind(&PushPromisePayloadDecoderTest::ApproveSizeForTruncated),
-      total_pad_length_));
+  EXPECT_TRUE(VerifyDetectsMultipleFrameSizeErrors(0, fb.buffer(), approve_size,
+                                                   total_pad_length_));
 }
 
 // Confirm we get an error if the PADDED flag is set but the payload is not
 // long enough to hold even the Pad Length amount of padding.
 TEST_P(PushPromisePayloadDecoderTest, PaddingTooLong) {
   EXPECT_TRUE(VerifyDetectsPaddingTooLong());
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net