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}
diff --git a/modules/audio_processing/echo_control_mobile_impl.cc b/modules/audio_processing/echo_control_mobile_impl.cc
index 0ff1bce..841364f 100644
--- a/modules/audio_processing/echo_control_mobile_impl.cc
+++ b/modules/audio_processing/echo_control_mobile_impl.cc
@@ -120,10 +120,10 @@
 }
 
 EchoControlMobileImpl::~EchoControlMobileImpl() {
-    if (external_echo_path_ != NULL) {
-      delete [] external_echo_path_;
-      external_echo_path_ = NULL;
-    }
+  if (external_echo_path_ != NULL) {
+    delete[] external_echo_path_;
+    external_echo_path_ = NULL;
+  }
 }
 
 void EchoControlMobileImpl::ProcessRenderAudio(
@@ -218,8 +218,7 @@
       ++handle_index;
     }
     for (size_t band = 1u; band < audio->num_bands(); ++band) {
-      memset(audio->split_bands(capture)[band],
-             0,
+      memset(audio->split_bands(capture)[band], 0,
              audio->num_frames_per_band() *
                  sizeof(audio->split_bands(capture)[band][0]));
     }
@@ -269,8 +268,7 @@
   return Configure();
 }
 
-EchoControlMobile::RoutingMode EchoControlMobileImpl::routing_mode()
-    const {
+EchoControlMobile::RoutingMode EchoControlMobileImpl::routing_mode() const {
   rtc::CritScope cs(crit_capture_);
   return routing_mode_;
 }