Add character encoding to Font Settings Extension API.

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

Index: chrome/common/extensions/api/experimental.fontSettings.json
diff --git a/chrome/common/extensions/api/experimental.fontSettings.json b/chrome/common/extensions/api/experimental.fontSettings.json
index 9b9af4181c23065182a3cd2c6604c4ff12e06b03..7e8801343f59b48b2e2cc9b448806377de00c056 100644
--- a/chrome/common/extensions/api/experimental.fontSettings.json
+++ b/chrome/common/extensions/api/experimental.fontSettings.json
@@ -283,6 +283,57 @@
             "parameters": []
           }
         ]
+      },
+      {
+        "name": "getDefaultCharacterSet",
+        "description": "Gets the default character set.",
+        "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": {
+                  "charset": {
+                    "type": "string",
+                    "description": "The default character set, such as \"ISO-8859-1\"."
+                  }
+                }
+              }
+            ]
+          }
+        ]
+      },
+      {
+        "name": "setDefaultCharacterSet",
+        "description": "Sets the default character set.",
+        "parameters": [
+          {
+            "name": "details",
+            "type": "object",
+            "properties": {
+              "charset": {
+                "type": "string",
+                "description": "The character set."
+              }
+            }
+          },
+          {
+            "name": "callback",
+            "type": "function",
+            "optional": true,
+            "parameters": []
+          }
+        ]
       }
     ],
     "events": [
@@ -371,6 +422,26 @@
             }
           }
         ]
+      },
+      {
+        "name": "onDefaultCharacterSetChanged",
+        "description": "Fired when the default character set setting changes.",
+        "parameters": [
+          {
+            "type": "object",
+            "name": "details",
+            "properties": {
+              "charset": {
+                "type": "string",
+                "description": "The character set."
+              },
+              "levelOfControl": {
+                "$ref": "LevelOfControl",
+                "description": "The level of control this extension has over the setting."
+              }
+            }
+          }
+        ]
       }
     ]
   }