[Cleanup] Rename methods with 'FeaturePolicy' in method name

'font-display' has been migrated from feature policy to document policy
in (https://chromium-review.googlesource.com/c/chromium/src/+/2036518).
This CL cleans up some misnames after the migration.

Change-Id: I2edc1611a8b5f53997ad152661ba18284eac669a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2404147Reviewed-by: Ian Clelland <iclelland@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Commit-Queue: Charlie Hu <chenleihu@google.com>
Cr-Commit-Position: refs/heads/master@{#808479}

third_party/blink/renderer/core/css/remote_font_face_source.cc

@@ -147,9 +147,9 @@ RemoteFontFaceSource::RemoteFontFaceSource(CSSFontFace* css_font_face,
       font_selector_(font_selector),
       // No need to report the violation here since the font is not loaded yet
       display_(
-          GetFontDisplayWithFeaturePolicyCheck(display,
-                                               font_selector,
-                                               ReportOptions::kDoNotReport)),
+          GetFontDisplayWithDocumentPolicyCheck(display,
+                                                font_selector,
+                                                ReportOptions::kDoNotReport)),
       phase_(kNoLimitExceeded),
       is_intervention_triggered_(ShouldTriggerWebFontsIntervention()),
       finished_before_document_rendering_begin_(false),
@@ -266,7 +266,7 @@ void RemoteFontFaceSource::SetDisplay(FontDisplay display) {
   // using the loaded font.
   if (IsLoaded())
     return;
-  display_ = GetFontDisplayWithFeaturePolicyCheck(
+  display_ = GetFontDisplayWithDocumentPolicyCheck(
       display, font_selector_, ReportOptions::kReportOnFailure);
   UpdatePeriod();
 }
@@ -290,7 +290,7 @@ bool RemoteFontFaceSource::UpdatePeriod() {
   return changed;
 }
 
-FontDisplay RemoteFontFaceSource::GetFontDisplayWithFeaturePolicyCheck(
+FontDisplay RemoteFontFaceSource::GetFontDisplayWithDocumentPolicyCheck(
     FontDisplay display,
     const FontSelector* font_selector,
     ReportOptions report_option) const {

third_party/blink/renderer/core/css/remote_font_face_source.h

@@ -138,9 +138,9 @@ class RemoteFontFaceSource final : public CSSFontFaceSource,
   bool UpdatePeriod() override;
   bool ShouldTriggerWebFontsIntervention();
   bool IsLowPriorityLoadingAllowedForRemoteFont() const override;
-  FontDisplay GetFontDisplayWithFeaturePolicyCheck(FontDisplay,
-                                                   const FontSelector*,
-                                                   ReportOptions) const;
+  FontDisplay GetFontDisplayWithDocumentPolicyCheck(FontDisplay,
+                                                    const FontSelector*,
+                                                    ReportOptions) const;
 
   // Our owning font face.
   Member<CSSFontFace> face_;