Remove WebTransmissionEncodingInfoHandler

Now that its child class (WebTransmissionEncodingInfoHandler)
has been moved to Blink [1], it can be used directly.

[1] https://crrev.com/c/1785162/

BUG=787254, 919392
R=guidou@chromium.org, haraken@chromium.org

Change-Id: I6f34a60260c214e7e74e09fc36e8ff7b94a8319d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1784906
Commit-Queue: Antonio Gomes <tonikitoo@igalia.com>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Guido Urdaneta <guidou@chromium.org>
Cr-Commit-Position: refs/heads/master@{#694230}

third_party/blink/public/BUILD.gn

@@ -350,7 +350,6 @@ source_set("blink_headers") {
     "platform/web_touch_action.h",
     "platform/web_touch_event.h",
     "platform/web_touch_point.h",
-    "platform/web_transmission_encoding_info_handler.h",
     "platform/web_url.h",
     "platform/web_url_error.h",
     "platform/web_url_load_timing.h",

third_party/blink/public/platform/web_transmission_encoding_info_handler.h

-// Copyright 2019 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 THIRD_PARTY_BLINK_PUBLIC_PLATFORM_WEB_TRANSMISSION_ENCODING_INFO_HANDLER_H_
-#define THIRD_PARTY_BLINK_PUBLIC_PLATFORM_WEB_TRANSMISSION_ENCODING_INFO_HANDLER_H_
-
-#include <memory>
-
-#include "base/callback_forward.h"
-#include "third_party/blink/public/platform/modules/media_capabilities/web_media_capabilities_info.h"
-#include "third_party/blink/public/platform/web_common.h"
-
-namespace blink {
-
-struct WebMediaConfiguration;
-
-// Platform interface of a TransmissionEncodingInfoHandler.
-// It handle MediaCapabilities.encodingInfo() API with
-// "transmission" type.
-class BLINK_PLATFORM_EXPORT WebTransmissionEncodingInfoHandler {
- public:
-  virtual ~WebTransmissionEncodingInfoHandler() = default;
-
-  // Queries the capabilities of the given encoding configuration and passes
-  // WebMediaCapabilitiesInfo result via callbacks.
-  // It implements WICG Media Capabilities encodingInfo() call for transmission
-  // encoding.
-  // https://wicg.github.io/media-capabilities/#media-capabilities-interface
-  using OnMediaCapabilitiesEncodingInfoCallback =
-      base::OnceCallback<void(std::unique_ptr<WebMediaCapabilitiesInfo>)>;
-  virtual void EncodingInfo(const WebMediaConfiguration&,
-                            OnMediaCapabilitiesEncodingInfoCallback) const = 0;
-};
-
-}  // namespace blink
-
-#endif  // THIRD_PARTY_BLINK_PUBLIC_PLATFORM_WEB_TRANSMISSION_ENCODING_INFO_HANDLER_H_

third_party/blink/renderer/platform/peerconnection/transmission_encoding_info_handler.h

@@ -8,12 +8,14 @@
 #include <memory>
 #include <string>
 
+#include "base/callback_forward.h"
 #include "base/containers/flat_set.h"
 #include "base/macros.h"
-#include "third_party/blink/public/platform/web_transmission_encoding_info_handler.h"
+#include "third_party/blink/public/platform/modules/media_capabilities/web_media_capabilities_info.h"
 #include "third_party/blink/renderer/platform/platform_export.h"
 
 namespace blink {
+struct WebMediaConfiguration;
 struct WebVideoConfiguration;
 }  // namespace blink
 
@@ -24,8 +26,7 @@ class VideoEncoderFactory;
 namespace blink {
 
 // blink::WebTransmissionEncodingInfoHandler implementation.
-class PLATFORM_EXPORT TransmissionEncodingInfoHandler final
-    : public blink::WebTransmissionEncodingInfoHandler {
+class PLATFORM_EXPORT TransmissionEncodingInfoHandler {
  public:
   static TransmissionEncodingInfoHandler* Instance();
 
@@ -35,11 +36,17 @@ class PLATFORM_EXPORT TransmissionEncodingInfoHandler final
   explicit TransmissionEncodingInfoHandler(
       std::unique_ptr<webrtc::VideoEncoderFactory> video_encoder_factory,
       bool cpu_hd_smooth);
-  ~TransmissionEncodingInfoHandler() override;
-
-  // blink::WebTransmissionEncodingInfoHandler implementation.
+  ~TransmissionEncodingInfoHandler();
+
+  // Queries the capabilities of the given encoding configuration and passes
+  // WebMediaCapabilitiesInfo result via callbacks.
+  // It implements WICG Media Capabilities encodingInfo() call for transmission
+  // encoding.
+  // https://wicg.github.io/media-capabilities/#media-capabilities-interface
+  using OnMediaCapabilitiesEncodingInfoCallback =
+      base::OnceCallback<void(std::unique_ptr<WebMediaCapabilitiesInfo>)>;
   void EncodingInfo(const blink::WebMediaConfiguration& configuration,
-                    OnMediaCapabilitiesEncodingInfoCallback cb) const override;
+                    OnMediaCapabilitiesEncodingInfoCallback cb) const;
 
  private:
   // Extracts supported video/audio codec name from |mime_type|. Returns "" if