Reformat the WebRTC code base

Running clang-format with chromium's style guide.

The goal is n-fold:
 * providing consistency and readability (that's what code guidelines are for)
 * preventing noise with presubmit checks and git cl format
 * building on the previous point: making it easier to automatically fix format issues
 * you name it

Please consider using git-hyper-blame to ignore this commit.

Bug: webrtc:9340
Change-Id: I694567c4cdf8cee2860958cfe82bfaf25848bb87
Reviewed-on: https://webrtc-review.googlesource.com/81185
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23660}

rtc_tools/simple_command_line_parser.cc

@@ -22,7 +22,7 @@ CommandLineParser::CommandLineParser() {}
 CommandLineParser::~CommandLineParser() {}
 
 void CommandLineParser::Init(int argc, char** argv) {
-  args_ = std::vector<std::string> (argv + 1, argv + argc);
+  args_ = std::vector<std::string>(argv + 1, argv + argc);
 }
 
 bool CommandLineParser::IsStandaloneFlag(std::string flag) {