Update to Chromium revision 280796.

- Mac: Remove Carbon interpose library (see http://crbug.com/157130).
- Remove unused LOGSEVERITY_ERROR_REPORT value (see http://crbug.com/352378).
- CefURLRequest in the render process will now always have the UR_FLAG_REPORT_LOAD_TIMING flag set (see http://crbug.com/376025#c15).
- Change CefGeolocationHandler::OnRequestGeolocationPermission return value from void to boolean.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@1753 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

tests/unittests/geolocation_unittest.cc

@@ -78,7 +78,7 @@ class GeolocationTestHandler : public TestHandler {
       callback->Continue(false);
   }
 
-  virtual void OnRequestGeolocationPermission(
+  virtual bool OnRequestGeolocationPermission(
       CefRefPtr<CefBrowser> browser,
       const CefString& requesting_url,
       int request_id,
@@ -97,6 +97,8 @@ class GeolocationTestHandler : public TestHandler {
           NewCefRunnableMethod(this, &GeolocationTestHandler::ExecuteCallback,
                                callback));
     }
+
+    return true;
   }
 
   virtual void OnCancelGeolocationPermission(