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}

modules/desktop_capture/shared_memory.cc

@@ -19,10 +19,6 @@ const SharedMemory::Handle SharedMemory::kInvalidHandle = -1;
 #endif
 
 SharedMemory::SharedMemory(void* data, size_t size, Handle handle, int id)
-  : data_(data),
-    size_(size),
-    handle_(handle),
-    id_(id) {
-}
+    : data_(data), size_(size), handle_(handle), id_(id) {}
 
 }  // namespace webrtc