Fix filenames in frame/BUILD.gn

Three header files were renamed recently, but the corresponding lines in
the relevant BUILD.gn file were missed.

Change-Id: Id22ef514e25b7d16f07459771327a404393fcd86
Reviewed-on: https://chromium-review.googlesource.com/1101509Reviewed-by: Paul Meyer <paulmeyer@chromium.org>
Reviewed-by: Jeremy Roman <jbroman@chromium.org>
Commit-Queue: Jeremy Roman <jbroman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#567528}

third_party/blink/renderer/core/frame/BUILD.gn

@@ -29,7 +29,7 @@ blink_core_sources("frame") {
     "deprecated_schedule_style_recalc_during_layout.h",
     "deprecation.cc",
     "deprecation.h",
-    "deprecation_report.h",
+    "deprecation_report_body.h",
     "device_single_window_event_controller.cc",
     "device_single_window_event_controller.h",
     "dom_timer.cc",
@@ -73,7 +73,7 @@ blink_core_sources("frame") {
     "hosts_using_features.h",
     "intervention.cc",
     "intervention.h",
-    "intervention_report.h",
+    "intervention_report_body.h",
     "layout_subtree_root_list.cc",
     "layout_subtree_root_list.h",
     "local_dom_window.cc",
@@ -85,7 +85,7 @@ blink_core_sources("frame") {
     "local_frame_view.h",
     "location.cc",
     "location.h",
-    "message_report.h",
+    "message_report_body.h",
     "navigator.cc",
     "navigator.h",
     "navigator_concurrent_hardware.cc",