Extension API: Rename contentSettings.misc to .global and rename preferences under it.

chrome/test/data/extensions/api_test/content_settings/onchange/test.html

 <script>
 // Content settings API test
 // Run with browser_tests --gtest_filter=ExtensionApiTest.ContentSettingsOnChange
 
 // Listen until |event| has fired with all of the values in |expected|.
 function listenUntil(event, expected) {
   var done = chrome.test.listenForever(event, function(value) {
     for (var i = 0; i < expected.length; i++) {
       if (chrome.test.checkDeepEq(expected[i], value)) {
         expected.splice(i, 1);
         if (expected.length == 0)
           done();
         return;
       }
     }
     chrome.test.fail("Unexpected event: " + JSON.stringify(value));
   });
 }
 
 var cs = chrome.experimental.contentSettings;
 chrome.test.runTests([
   function changeDefault() {
     // Changing the regular settings when no incognito-specific settings are
     // defined should fire two events.
-    listenUntil(cs.misc.blockThirdPartyCookies.onChange, [{
+    listenUntil(cs.global.thirdPartyCookiesAllowed.onChange, [{
+      'value': false,
+      'levelOfControl': 'controlled_by_this_extension'
+    },
+    {
+      'value': false,
+      'incognitoSpecific': false,
+      'levelOfControl': 'controlled_by_this_extension'
+    }]);
+    cs.global.thirdPartyCookiesAllowed.set({
+      'value':false
+    }, chrome.test.callbackPass());
+  },
+  function changeIncognitoOnly() {
+    listenUntil(cs.global.thirdPartyCookiesAllowed.onChange, [{
+      'value': true,
+      'incognitoSpecific': true,
+      'levelOfControl': 'controlled_by_this_extension'
+    }]);
+    cs.global.thirdPartyCookiesAllowed.set({
+      'value': true,
+      'scope': 'incognito_persistent'
+    }, chrome.test.callbackPass());
+  },
+  function changeDefaultOnly() {
+    listenUntil(cs.global.thirdPartyCookiesAllowed.onChange, [{
       'value': true,
       'levelOfControl': 'controlled_by_this_extension'
+    }]);
+    cs.global.thirdPartyCookiesAllowed.set({
+      'value': true
+    }, chrome.test.callbackPass());
+  },
+  function changeIncognitoOnlyBack() {
+    // Change the incognito setting back to false so that we get an event when
+    // clearing the value.
+    listenUntil(cs.global.thirdPartyCookiesAllowed.onChange, [{
+      'value': false,
+      'incognitoSpecific': true,
+      'levelOfControl': 'controlled_by_this_extension'
+    }]);
+    cs.global.thirdPartyCookiesAllowed.set({
+      'value': false,
+      'scope': 'incognito_persistent'
+    }, chrome.test.callbackPass());
+  },
+  function clearIncognito() {
+    listenUntil(cs.global.thirdPartyCookiesAllowed.onChange, [{
+      'value': true,
+      'incognitoSpecific': false,
+      'levelOfControl': 'controlled_by_this_extension'
+    }]);
+    cs.global.thirdPartyCookiesAllowed.clear({
+      'scope': 'incognito_persistent'
+    }, chrome.test.callbackPass());
+  },
+  function clearDefault() {
+    listenUntil(cs.global.thirdPartyCookiesAllowed.onChange, [{
+      'value': true,
+      'levelOfControl': 'controllable_by_this_extension'
     },
     {
       'value': true,
       'incognitoSpecific': false,
-      'levelOfControl': 'controlled_by_this_extension'
-    }]);
-    cs.misc.blockThirdPartyCookies.set({
-      'value':true
-    }, chrome.test.callbackPass());
-  },
-  function changeIncognitoOnly() {
-    listenUntil(cs.misc.blockThirdPartyCookies.onChange, [{
-      'value': false,
-      'incognitoSpecific': true,
-      'levelOfControl': 'controlled_by_this_extension'
-    }]);
-    cs.misc.blockThirdPartyCookies.set({
-      'value': false,
-      'scope': 'incognito_persistent'
-    }, chrome.test.callbackPass());
-  },
-  function changeDefaultOnly() {
-    listenUntil(cs.misc.blockThirdPartyCookies.onChange, [{
-      'value': false,
-      'levelOfControl': 'controlled_by_this_extension'
-    }]);
-    cs.misc.blockThirdPartyCookies.set({
-      'value': false
-    }, chrome.test.callbackPass());
-  },
-  function changeIncognitoOnlyBack() {
-    // Change the incognito setting back to true so that we get an event when
-    // clearing the value.
-    listenUntil(cs.misc.blockThirdPartyCookies.onChange, [{
-      'value': true,
-      'incognitoSpecific': true,
-      'levelOfControl': 'controlled_by_this_extension'
-    }]);
-    cs.misc.blockThirdPartyCookies.set({
-      'value': true,
-      'scope': 'incognito_persistent'
-    }, chrome.test.callbackPass());
-  },
-  function clearIncognito() {
-    listenUntil(cs.misc.blockThirdPartyCookies.onChange, [{
-      'value': false,
-      'incognitoSpecific': false,
-      'levelOfControl': 'controlled_by_this_extension'
-    }]);
-    cs.misc.blockThirdPartyCookies.clear({
-      'scope': 'incognito_persistent'
-    }, chrome.test.callbackPass());
-  },
-  function clearDefault() {
-    listenUntil(cs.misc.blockThirdPartyCookies.onChange, [{
-      'value': false,
-      'levelOfControl': 'controllable_by_this_extension'
-    },
-    {
-      'value': false,
-      'incognitoSpecific': false,
       'levelOfControl': 'controllable_by_this_extension'
     }]);
-    cs.misc.blockThirdPartyCookies.clear({}, chrome.test.callbackPass());
+    cs.global.thirdPartyCookiesAllowed.clear({}, chrome.test.callbackPass());
   }
 ]);
 
 </script>