crosswalk-project/crosswalk — pull request #2517 by iKevinHan (2014-10-17 09:24:05+00:00)
Title: [Tizen][Linux] Support the following URI schemes: tel:, sms:, mailto:.

Explanation:

1 Override "content::RuntimeResourceDispatcherHostDelegate::HandleExternalProtocol" in according child class to implement the platform-specific surpporting:
(1) On TizenIVI, through DBus to invoke corresponding default system application.
(2) On Linux, use XDG utils.
(3) On Android, it's been implemented already, keep unchanged.
2 In "XWalkContentBrowserClient::ResourceDispatcherHostCreated" triger the resource_dispatcher_host_delegate to be set.
3 The main reason to implemented the Linux part is to verify our design, the code of function "XDGUtil" is copied from chrome directly.
BUG=https://crosswalk-project.org/jira/browse/XWALK-1501