Concatenate string literals at compile time.

This CL was generated by running:
git ls-files | grep ".cc" | xargs perl -i -ne 'BEGIN {undef $/}; s/("[\s\n]*<<[\s\n]*")/" "/g; print;'; git cl format

After that I manually edited modules/audio_processing/gain_controller2.cc to preserve its original
formatting.

This primary benefit of this change is a small reduction in binary size.

Bug: None
Change-Id: I689fa7ba9c717c314bb167e5d592c3c4e0871e29
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/165961
Reviewed-by: Alessio Bazzica <alessiob@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Commit-Queue: Jonas Olsson <jonasolsson@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30251}
diff --git a/modules/video_coding/frame_buffer2.cc b/modules/video_coding/frame_buffer2.cc
index f76b957..1074215 100644
--- a/modules/video_coding/frame_buffer2.cc
+++ b/modules/video_coding/frame_buffer2.cc
@@ -350,7 +350,8 @@
     int frame_delay = static_cast<int>(std::abs(render_time_ms - now_ms));
     RTC_LOG(LS_WARNING)
         << "A frame about to be decoded is out of the configured "
-        << "delay bounds (" << frame_delay << " > " << kMaxVideoDelayMs
+           "delay bounds ("
+        << frame_delay << " > " << kMaxVideoDelayMs
         << "). Resetting the video jitter buffer.";
     return true;
   }
@@ -482,14 +483,14 @@
                           << id.picture_id << ":"
                           << static_cast<int>(id.spatial_layer)
                           << ") but buffer is full, clearing"
-                          << " buffer and inserting the frame.";
+                             " buffer and inserting the frame.";
       ClearFramesAndHistory();
     } else {
       RTC_LOG(LS_WARNING) << "Frame with (picture_id:spatial_id) ("
                           << id.picture_id << ":"
                           << static_cast<int>(id.spatial_layer)
                           << ") could not be inserted due to the frame "
-                          << "buffer being full, dropping frame.";
+                             "buffer being full, dropping frame.";
       return last_continuous_picture_id;
     }
   }
@@ -662,7 +663,7 @@
               << "Frame with (picture_id:spatial_id) (" << id.picture_id << ":"
               << static_cast<int>(id.spatial_layer)
               << ") depends on a non-decoded frame more previous than"
-              << " the last decoded frame, dropping frame.";
+                 " the last decoded frame, dropping frame.";
           last_log_non_decoded_ms_ = now_ms;
         }
         return false;