Use removeFontFace to avoid resetting fontSelector.

Source/core/testing/InternalSettings.cpp

Index: Source/core/testing/InternalSettings.cpp
diff --git a/Source/core/testing/InternalSettings.cpp b/Source/core/testing/InternalSettings.cpp
index f33f7492931d0475e87f350373c63023b7466afa..a36f0b8738be2f0dfce29a2a23ef771fe208b9e0 100644
--- a/Source/core/testing/InternalSettings.cpp
+++ b/Source/core/testing/InternalSettings.cpp
@@ -229,7 +229,7 @@ void InternalSettings::setStandardFontFamily(const AtomicString& family, const S
     UScriptCode code = scriptNameToCode(script);
     if (code == USCRIPT_INVALID_CODE)
         return;
-    settings()->genericFontFamilySettings().setStandard(family, code);
+    settings()->setStandardFontFamily(family, code);
     m_page->setNeedsRecalcStyleInAllFrames();
 }
 
@@ -239,7 +239,7 @@ void InternalSettings::setSerifFontFamily(const AtomicString& family, const Stri
     UScriptCode code = scriptNameToCode(script);
     if (code == USCRIPT_INVALID_CODE)
         return;
-    settings()->genericFontFamilySettings().setSerif(family, code);
+    settings()->setSerifFontFamily(family, code);
     m_page->setNeedsRecalcStyleInAllFrames();
 }
 
@@ -249,7 +249,7 @@ void InternalSettings::setSansSerifFontFamily(const AtomicString& family, const
     UScriptCode code = scriptNameToCode(script);
     if (code == USCRIPT_INVALID_CODE)
         return;
-    settings()->genericFontFamilySettings().setSansSerif(family, code);
+    settings()->setSansSerifFontFamily(family, code);
     m_page->setNeedsRecalcStyleInAllFrames();
 }
 
@@ -259,7 +259,7 @@ void InternalSettings::setFixedFontFamily(const AtomicString& family, const Stri
     UScriptCode code = scriptNameToCode(script);
     if (code == USCRIPT_INVALID_CODE)
         return;
-    settings()->genericFontFamilySettings().setFixed(family, code);
+    settings()->setFixedFontFamily(family, code);
     m_page->setNeedsRecalcStyleInAllFrames();
 }
 
@@ -269,7 +269,7 @@ void InternalSettings::setCursiveFontFamily(const AtomicString& family, const St
     UScriptCode code = scriptNameToCode(script);
     if (code == USCRIPT_INVALID_CODE)
         return;
-    settings()->genericFontFamilySettings().setCursive(family, code);
+    settings()->setCursiveFontFamily(family, code);
     m_page->setNeedsRecalcStyleInAllFrames();
 }
 
@@ -279,7 +279,7 @@ void InternalSettings::setFantasyFontFamily(const AtomicString& family, const St
     UScriptCode code = scriptNameToCode(script);
     if (code == USCRIPT_INVALID_CODE)
         return;
-    settings()->genericFontFamilySettings().setFantasy(family, code);
+    settings()->setFantasyFontFamily(family, code);
     m_page->setNeedsRecalcStyleInAllFrames();
 }
 
@@ -289,7 +289,7 @@ void InternalSettings::setPictographFontFamily(const AtomicString& family, const
     UScriptCode code = scriptNameToCode(script);
     if (code == USCRIPT_INVALID_CODE)
         return;
-    settings()->genericFontFamilySettings().setPictograph(family, code);
+    settings()->setPictographFontFamily(family, code);
     m_page->setNeedsRecalcStyleInAllFrames();
 }