Fix c99-designator warning in one file.

The only left warnings were recently introduced by CL
https://chromium-review.googlesource.com/c/chromium/src/+/1811197
in files compositor_frame_reporter.cc and frame_sequence_tracker.cc.

Bug: 999871
Change-Id: I77d50266a87ee8b3dbe9d9ed313b5019a364a8c5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1899986
Auto-Submit: Vadym Doroshenko <dvadym@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Commit-Queue: Vadym Doroshenko <dvadym@chromium.org>
Cr-Commit-Position: refs/heads/master@{#712697}

build/config/compiler/BUILD.gn

@@ -1526,7 +1526,7 @@ config("default_warnings") {
 
           # TODO(https://crbug.com/999871): Decide if we want to clean up the
           # codebase or just disable this.  Doesn't seem super useful, but
-          # also fires in only 4 files.
+          # also fires in only 2 files.
           "-Wno-c99-designator",
 
           # TODO(https://crbug.com/999886): Clean up, enable.

chrome/browser/ui/views/omnibox/omnibox_text_view.cc

@@ -95,10 +95,11 @@ void ApplyTextStyleForType(SuggestionAnswer::TextStyle text_style,
       style = {gfx::kGoogleRed600};
       break;
     case SuggestionAnswer::TextStyle::SUPERIOR:
-      style = {part_color, .baseline = gfx::SUPERIOR};
+      style = {.color = part_color, .baseline = gfx::SUPERIOR};
       break;
     case SuggestionAnswer::TextStyle::BOLD:
-      style = {part_color, .baseline = gfx::NORMAL_BASELINE,
+      style = {.color = part_color,
+               .baseline = gfx::NORMAL_BASELINE,
                .weight = gfx::Font::Weight::BOLD};
       break;
     case SuggestionAnswer::TextStyle::NORMAL: