Add missing header files to GN files

content/renderer/BUILD.gn

Index: content/renderer/BUILD.gn
diff --git a/content/renderer/BUILD.gn b/content/renderer/BUILD.gn
index 36694f7aff87649a4d49972fc917bea9aea1e312..8ee3783eda5451be661132e4b2ee6bf3cb2c1383 100644
--- a/content/renderer/BUILD.gn
+++ b/content/renderer/BUILD.gn
@@ -94,6 +94,7 @@ target(link_target_type, "renderer") {
     "devtools/lock_free_circular_queue.h",
     "devtools/render_widget_screen_metrics_emulator.cc",
     "devtools/render_widget_screen_metrics_emulator.h",
+    "devtools/render_widget_screen_metrics_emulator_delegate.h",
     "dom_automation_controller.cc",
     "dom_automation_controller.h",
     "dom_storage/dom_storage_cached_area.cc",
@@ -195,6 +196,7 @@ target(link_target_type, "renderer") {
     "java/gin_java_bridge_value_converter.h",
     "java/gin_java_function_invocation_helper.cc",
     "java/gin_java_function_invocation_helper.h",
+    "layout_test_dependencies.h",
     "manifest/manifest_debug_info.cc",
     "manifest/manifest_debug_info.h",
     "manifest/manifest_manager.cc",
@@ -265,6 +267,7 @@ target(link_target_type, "renderer") {
     "media/webmediaplayer_ms_compositor.h",
     "menu_item_builder.cc",
     "menu_item_builder.h",
+    "message_delivery_policy.h",
     "mojo/blink_connector_js_wrapper.cc",
     "mojo/blink_connector_js_wrapper.h",
     "mojo/blink_interface_provider_impl.cc",
@@ -287,6 +290,10 @@ target(link_target_type, "renderer") {
     "net_info_helper.h",
     "origin_trials/web_trial_token_validator_impl.cc",
     "origin_trials/web_trial_token_validator_impl.h",
+    "p2p/network_list_manager.h",
+    "p2p/socket_client.h",
+    "p2p/socket_client_delegate.h",
+    "pepper/fullscreen_container.h",
     "peripheral_content_heuristic.cc",
     "peripheral_content_heuristic.h",
     "presentation/presentation_connection_proxy.cc",