Use HTTPS links for Google domains in docs

docs/linux_profiling.md

Index: docs/linux_profiling.md
diff --git a/docs/linux_profiling.md b/docs/linux_profiling.md
index b1f874fa0fad56470e12d6d87a0e9fff5e3b9a81..4d9ce0f7764efa36910b308cbd82c00da96991e3 100644
--- a/docs/linux_profiling.md
+++ b/docs/linux_profiling.md
@@ -164,7 +164,7 @@ http://google-perftools.googlecode.com/svn/trunk/doc/heapprofile.html.
 ### Massif
 
 [Massif](http://valgrind.org/docs/manual/mc-manual.html) is a
-[Valgrind](http://www.chromium.org/developers/how-tos/using-valgrind)-based heap
+[Valgrind](https://www.chromium.org/developers/how-tos/using-valgrind)-based heap
 profiler. It is much slower than the heap profiler from google-perftools, but it
 may have some advantages. (In particular, it handles the multi-process
 executables well).
@@ -173,7 +173,7 @@ First, you will need to build massif from valgrind-variant project yourself,
 it's [easy](http://code.google.com/p/valgrind-variant/wiki/HowTo).
 
 Then, make sure your Chromium is built using the
-[valgrind instructions](http://www.chromium.org/developers/how-tos/using-valgrind).
+[valgrind instructions](https://www.chromium.org/developers/how-tos/using-valgrind).
 Now, you can run massif like this:
 
 ```