[Documentation] Use HTTPS whenever possible

Differential revision: https://reviews.llvm.org/D56946

llvm-svn: 351976
diff --git a/clang/docs/ControlFlowIntegrityDesign.rst b/clang/docs/ControlFlowIntegrityDesign.rst
index bb1770d..b1a36f1 100644
--- a/clang/docs/ControlFlowIntegrityDesign.rst
+++ b/clang/docs/ControlFlowIntegrityDesign.rst
@@ -92,7 +92,7 @@
 the bit vectors for the whole program. It currently does this using LLVM's
 `type metadata`_ mechanism together with link-time optimization.
 
-.. _address point: http://itanium-cxx-abi.github.io/cxx-abi/abi.html#vtable-general
+.. _address point: https://itanium-cxx-abi.github.io/cxx-abi/abi.html#vtable-general
 .. _type metadata: https://llvm.org/docs/TypeMetadata.html
 .. _ByteArrayBuilder: https://llvm.org/docs/doxygen/html/structllvm_1_1ByteArrayBuilder.html
 
@@ -746,7 +746,7 @@
   * embedded into other instructions (e.g. `0f4fc3 cmovg %ebx,%eax`).
 
 .. _SafeStack: https://clang.llvm.org/docs/SafeStack.html
-.. _RFG: http://xlab.tencent.com/en/2016/11/02/return-flow-guard
+.. _RFG: https://xlab.tencent.com/en/2016/11/02/return-flow-guard
 .. _Intel CET: https://software.intel.com/en-us/blogs/2016/06/09/intel-release-new-technology-specifications-protect-rop-attacks
 
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