Add Georgia, Verdana, and Trebuchet MS to fallback list

When the number of font files exceeds 1750, we fallback to this list.
Include Verdana, Georgia, and Trebuchet MS in this list until font
loading is properly fixed.

R=shrikant@chromium.org,ananta@chromium.org
BUG=421305

Review URL: https://codereview.chromium.org/668743002

Cr-Commit-Position: refs/heads/master@{#300323}

content/renderer/renderer_font_platform_win.cc

@@ -317,6 +317,18 @@ const wchar_t* kRestrictedFontSet[] = {
   L"comici.ttf",    // IDS_CURSIVE_FONT_FAMILY
   L"comicz.ttf",    // IDS_CURSIVE_FONT_FAMILY
   L"impact.ttf",    // IDS_FANTASY_FONT_FAMILY
+  L"georgia.ttf",
+  L"georgiab.ttf",
+  L"georgiai.ttf",
+  L"georgiaz.ttf",
+  L"trebuc.ttf",
+  L"trebucbd.ttf",
+  L"trebucbi.ttf",
+  L"trebucit.ttf",
+  L"verdana.ttf",
+  L"verdanab.ttf",
+  L"verdanai.ttf",
+  L"verdanaz.ttf",
   L"segoeui.ttf",   // IDS_PICTOGRAPH_FONT_FAMILY
   L"segoeuib.ttf",  // IDS_PICTOGRAPH_FONT_FAMILY
   L"segoeuii.ttf",  // IDS_PICTOGRAPH_FONT_FAMILY