Remove PluginLoadObserver and related logic, it was only used for NPAPI.

content/child/npapi/plugin_url_fetcher.h

Index: content/child/npapi/plugin_url_fetcher.h
diff --git a/content/child/npapi/plugin_url_fetcher.h b/content/child/npapi/plugin_url_fetcher.h
deleted file mode 100644
index 8b0f09af669e79f37ab1230a8031b44200a39686..0000000000000000000000000000000000000000
--- a/content/child/npapi/plugin_url_fetcher.h
+++ /dev/null
@@ -1,102 +0,0 @@
-// Copyright (c) 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_CHILD_NPAPI_PLUGIN_URL_FETCHER_H_
-#define CONTENT_CHILD_NPAPI_PLUGIN_URL_FETCHER_H_
-
-#include <string>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "content/public/child/request_peer.h"
-#include "content/public/common/referrer.h"
-#include "url/gurl.h"
-
-namespace content {
-class MultipartResponseDelegate;
-class PluginStreamUrl;
-
-// Fetches URLS for a plugin using ResourceDispatcher.
-class PluginURLFetcher : public RequestPeer {
- public:
-  PluginURLFetcher(PluginStreamUrl* plugin_stream,
-                   const GURL& url,
-                   const GURL& first_party_for_cookies,
-                   const std::string& method,
-                   const char* buf,
-                   unsigned int len,
-                   const Referrer& referrer,
-                   const std::string& range,
-                   bool notify_redirects,
-                   bool is_plugin_src_load,
-                   int origin_pid,
-                   int render_frame_id,
-                   int render_view_id,
-                   unsigned long resource_id,
-                   bool copy_stream_data);
-  ~PluginURLFetcher() override;
-
-  // Cancels the current request.
-  void Cancel();
-
-  // Called with the plugin's reply to NPP_URLRedirectNotify.
-  void URLRedirectResponse(bool allow);
-
-  GURL first_party_for_cookies() { return first_party_for_cookies_; }
-  Referrer referrer() { return referrer_; }
-  int origin_pid() { return origin_pid_; }
-  int render_frame_id() { return render_frame_id_; }
-  int render_view_id() { return render_view_id_; }
-  bool copy_stream_data() { return copy_stream_data_; }
-  bool pending_failure_notification() { return pending_failure_notification_; }
-
- private:
-  // RequestPeer implementation:
-  void OnUploadProgress(uint64 position, uint64 size) override;
-  bool OnReceivedRedirect(const net::RedirectInfo& redirect_info,
-                          const ResourceResponseInfo& info) override;
-  void OnReceivedResponse(const ResourceResponseInfo& info) override;
-  void OnDownloadedData(int len, int encoded_data_length) override;
-  void OnReceivedData(scoped_ptr<ReceivedData> data) override;
-  void OnCompletedRequest(int error_code,
-                          bool was_ignored_by_handler,
-                          bool stale_copy_in_cache,
-                          const std::string& security_info,
-                          const base::TimeTicks& completion_time,
-                          int64 total_transfer_size) override;
-  void OnReceivedCompletedResponse(const ResourceResponseInfo& info,
-                                   scoped_ptr<ReceivedData> data,
-                                   int error_code,
-                                   bool was_ignored_by_handler,
-                                   bool stale_copy_in_cache,
-                                   const std::string& security_info,
-                                   const base::TimeTicks& completion_time,
-                                   int64 total_transfer_size) override;
-
-  // |plugin_stream_| becomes NULL after Cancel() to ensure no further calls
-  // |reach it.
-  PluginStreamUrl* plugin_stream_;
-  GURL url_;
-  GURL first_party_for_cookies_;
-  Referrer referrer_;
-  bool notify_redirects_;
-  bool is_plugin_src_load_;
-  int origin_pid_;
-  int render_frame_id_;
-  int render_view_id_;
-  unsigned long resource_id_;
-  bool copy_stream_data_;
-  int64 data_offset_;
-  bool pending_failure_notification_;
-  int request_id_;
-
-  scoped_ptr<MultipartResponseDelegate> multipart_delegate_;
-  base::WeakPtrFactory<PluginURLFetcher> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(PluginURLFetcher);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_CHILD_NPAPI_PLUGIN_URL_FETCHER_H_