Add suppressions for memcheck errors.

tools/valgrind-webrtc/memcheck/suppressions.txt

Index: tools/valgrind-webrtc/memcheck/suppressions.txt
diff --git a/tools/valgrind-webrtc/memcheck/suppressions.txt b/tools/valgrind-webrtc/memcheck/suppressions.txt
index 941f40d3b744835dec47fd6a369a2b79f526a505..9efb639200918af33439cb124f46764a70072c2b 100644
--- a/tools/valgrind-webrtc/memcheck/suppressions.txt
+++ b/tools/valgrind-webrtc/memcheck/suppressions.txt
@@ -420,3 +420,24 @@
    fun:opus_encode
    fun:WebRtcOpus_Encode
 }
+{
+   bug_5983
+   Memcheck:Uninitialized
+   fun:_ZN6webrtc11DataChannel4InitERKNS_23InternalDataChannelInitE
+   ...
+}
+{
+   bug_5984
+   Memcheck:Uninitialized
+   fun:_ZN6webrtc15GainControlImpl19ProcessCaptureAudioEPNS_11AudioBufferEb
+   ...
+}
+{
+   Ubuntu_Precise_Itoa_Optimized_Code

[kjellander_webrtc, 2016/06/09 07:12:14]

Move this one to the section
# third_party libraries
at the top of the file, since it's not caused by WebRTC source code.

[åsapersson, 2016/06/09 07:19:53]

Done.

+   Memcheck:Uninitialized
+   fun:_itoa_word
+   fun:vfprintf
+   fun:vsnprintf
+   fun:snprintf
+   ...
+}