Revert of Revert "Remove MediaStreamTrack.getSources()."

third_party/WebKit/public/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/buildflag_header.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//third_party/WebKit/public/public_features.gni")
 import("//third_party/WebKit/Source/config.gni")
 import("//third_party/WebKit/Source/core/core.gni")
 import("//tools/grit/grit_rule.gni")
@@ skipping 267 matching lines @@
     "platform/WebScrollbarOverlayColorTheme.h",
     "platform/WebScrollbarThemeGeometry.h",
     "platform/WebScrollbarThemePainter.h",
     "platform/WebSecurityOrigin.h",
     "platform/WebSecurityStyle.h",
     "platform/WebSelectionBound.h",
     "platform/WebSetSinkIdCallbacks.h",
     "platform/WebSize.h",
     "platform/WebSourceBuffer.h",
     "platform/WebSourceBufferClient.h",
-    "platform/WebSourceInfo.h",
     "platform/WebSpeechSynthesisUtterance.h",
     "platform/WebSpeechSynthesisVoice.h",
     "platform/WebSpeechSynthesizer.h",
     "platform/WebSpeechSynthesizerClient.h",
     "platform/WebStorageArea.h",
     "platform/WebStorageNamespace.h",
     "platform/WebStorageQuotaCallbacks.h",
     "platform/WebStorageQuotaError.h",
     "platform/WebStorageQuotaType.h",
     "platform/WebString.h",
@@ skipping 457 matching lines @@
 # relegated to a separate target to avoid duplication between the variants.
 source_set("shared_typemap_traits") {
   visibility = [ ":*" ]
   sources = [
     "web/WindowFeaturesStructTraits.cpp",
   ]
   deps = [
     ":new_wrapper_types_mojo_bindings_shared__generator",
   ]
 }