Delete the NPAPI plugin browsertests.

content/test/plugin/plugin_request_read_test.h

-// Copyright 2013 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.
-
-#ifndef CONTENT_TEST_PLUGIN_PLUGIN_REQUEST_READ_TEST_H_
-#define CONTENT_TEST_PLUGIN_PLUGIN_REQUEST_READ_TEST_H_
-
-#include <string>
-#include <vector>
-
-#include "base/compiler_specific.h"
-#include "content/test/plugin/plugin_test.h"
-
-namespace NPAPIClient {
-
-// Tests whether the browser correctly handles single range requests from NPAPI
-// plugins.
-class PluginRequestReadTest : public PluginTest {
- public:
-  PluginRequestReadTest(NPP id, NPNetscapeFuncs* host_functions);
-  ~PluginRequestReadTest() override;
-
-  //
-  // NPAPI Functions
-  //
-  NPError New(uint16 mode,
-              int16 argc,
-              const char* argn[],
-              const char* argv[],
-              NPSavedData* saved) override;
-  NPError SetWindow(NPWindow* window) override;
-  NPError NewStream(NPMIMEType type,
-                    NPStream* stream,
-                    NPBool seekable,
-                    uint16* stream_type) override;
-  NPError DestroyStream(NPStream* stream, NPError reason) override;
-  int32 WriteReady(NPStream* stream) override;
-  int32 Write(NPStream* stream, int32 offset, int32 len, void* buffer) override;
-
- private:
-  // Tracks ranges, which we requested, but for which we did not get response.
-  std::vector<NPByteRange> requested_ranges_;
-  std::string url_to_request_;
-  bool tests_started_;
-  bool read_requested_;
-};
-
-}  // namespace NPAPIClient
-
-#endif  // CONTENT_TEST_PLUGIN_PLUGIN_REQUEST_READ_TEST_H_
-