Expose more font size prefs to the Font Settings Extension API.

chrome/common/extensions/api/experimental.fontSettings.json

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 [
   {
     "namespace": "experimental.fontSettings",
     "types": [
       {
         "id": "FontName",
@@ skipping 35 matching lines @@
               "genericFamily": {
                 "type": "string",
                 "enum": ["standard", "sansserif", "serif", "fixed", "cursive", "fantasy"],
                 "description": "The CSS generic font family for which the font setting should be retrieved."
               }
             }
           },
           {
             "type": "function",
             "name": "callback",
-            "optional": "true",
+            "optional": true,
             "parameters": [
               {
                 "name": "details",
                 "type": "object",
                 "properties": {
                   "fontName": {
                     "type": "string",
                     "description": "The font name."
                   }
                 }
@@ skipping 29 matching lines @@
               },
               "fontName": {
                 "type": "string",
                 "description": "The font name."
               }
             }
           },
           {
             "type": "function",
             "name": "callback",
-            "optional": "true",
+            "optional": true,
             "parameters": []
           }
         ]
       },
       {
         "name": "getFontList",
         "type": "function",
         "description": "Gets a list of fonts on the system.",
         "parameters": [
           {
@@ skipping 10 matching lines @@
         ]
       },
       {
         "name": "getDefaultFontSize",
         "type": "function",
         "description": "Gets the default font size.",
         "parameters": [
           {
             "name": "details",
             "type": "object",
+            "optional": true,
             "description": "This parameter is currently unused."
           },
           {
             "name": "callback",
             "type": "function",
-            "optional": "true",
+            "optional": true,
             "parameters": [
               {
                 "name": "details",
                 "type": "object",
                 "properties": {
                   "pixelSize": {
                     "type": "integer",
                     "description": "The font size in pixels."
                   }
                 }
@@ skipping 13 matching lines @@
             "properties": {
               "pixelSize": {
                 "type": "integer",
                 "description": "The font size in pixels."
               }
             }
           },
           {
             "type": "function",
             "name": "callback",
-            "optional": "true",
+            "optional": true,
             "parameters": []
           }
         ]
+      },
+      {
+        "name": "getDefaultFixedFontSize",
+        "type": "function",
+        "description": "Gets the default size for fixed width fonts.",
+        "parameters": [
+          {
+            "name": "details",
+            "type": "object",
+            "optional": true,
+            "description": "This parameter is currently unused."
+          },
+          {
+            "name": "callback",
+            "type": "function",
+            "optional": true,
+            "parameters": [
+              {
+                "name": "details",
+                "type": "object",
+                "properties": {
+                  "pixelSize": {
+                    "type": "integer",
+                    "description": "The font size in pixels."
+                  }
+                }
+              }
+            ]
+          }
+        ]
+      },
+      {
+        "name": "setDefaultFixedFontSize",
+        "type": "function",
+        "description": "Sets the default size for fixed width fonts.",
+        "parameters": [
+          {
+            "name": "details",
+            "type": "object",
+            "properties": {
+              "pixelSize": {
+                "type": "integer",
+                "description": "The font size in pixels."
+              }
+            }
+          },
+          {
+            "type": "function",
+            "name": "callback",
+            "optional": true,
+            "parameters": []
+          }
+        ]
+      },
+      {
+        "name": "getMinimumFontSize",
+        "type": "function",
+        "description": "Gets the minimum font size.",
+        "parameters": [
+          {
+            "name": "details",
+            "type": "object",
+            "optional": true,
+            "description": "This parameter is currently unused."
+          },
+          {
+            "name": "callback",
+            "type": "function",
+            "optional": true,
+            "parameters": [
+              {
+                "name": "details",
+                "type": "object",
+                "properties": {
+                  "pixelSize": {
+                    "type": "integer",
+                    "description": "The font size in pixels."
+                  }
+                }
+              }
+            ]
+          }
+        ]
+      },
+      {
+        "name": "setMinimumFontSize",
+        "type": "function",
+        "description": "Sets the minimum font size.",
+        "parameters": [
+          {
+            "name": "details",
+            "type": "object",
+            "properties": {
+              "pixelSize": {
+                "type": "integer",
+                "description": "The font size in pixels."
+              }
+            }
+          },
+          {
+            "type": "function",
+            "name": "callback",
+            "optional": true,
+            "parameters": []
+          }
+        ]
       }
     ]
   }
 ]