chrome/blink: Add functionality for in-product help for media elements.

chrome/common/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("//build/util/process_version.gni")
 import("//chrome/common/features.gni")
 import("//chrome/process_version_rc_template.gni")  # For branding_file_path.
 import("//extensions/features/features.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
@@ skipping 682 matching lines @@
   ]
 }
 
 mojom("mojo_bindings") {
   sources = [
     "cache_stats_recorder.mojom",
     "conflicts/module_event_sink_win.mojom",
     "file_patcher.mojom",
     "image_context_menu_renderer.mojom",
     "insecure_content_renderer.mojom",
+    "media_iph.mojom",
     "net_benchmarking.mojom",
     "network_diagnostics.mojom",
     "open_search_description_document_handler.mojom",
     "prerender.mojom",
     "renderer_configuration.mojom",
     "resource_usage_reporter.mojom",
     "shell_handler_win.mojom",
     "thumbnail_capturer.mojom",
   ]
 
@@ skipping 29 matching lines @@
 
 mojom("page_load_metrics_mojom") {
   sources = [
     "page_load_metrics/page_load_metrics.mojom",
   ]
 
   public_deps = [
     "//mojo/common:common_custom_types",
   ]
 }