commit a771bf8ee84f293c166d3e377d852e9705c12725
author dcheng <dcheng@chromium.org> Thu Jul 02 00:52:10 2015
committer Commit bot <commit-bot@chromium.org> Thu Jul 02 00:52:18 2015
tree cad3c4fb01cc7113e0c5640de2479cfe5745ce56
parent d830aeafe943b498fd0db51f949dc183be3b4e4f

Fix some clang warnings with -Wmissing-braces in WebRTC.

Clang warns if there are missing braces around a subobject
initializer. The most common idiom that triggers this is:
  STRUCT s = {0};
if the first field of STRUCT is itself a struct. This can
be more simply written as:
  STRUCT s = {};
which also prevents the warning from firing.

Other instances of the warning have been fixed by adding
braces where appropriate.

BUG=505297
TBR=jiayl@webrtc.org

Review URL: https://codereview.webrtc.org/1216353002

Cr-Commit-Position: refs/heads/master@{#9529}