Apply gn format with 'sources' sorting to src/

third_party/opus/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/arm.gni")
 import("//testing/test.gni")
 
 # If fixed point implementation shall be used (otherwise float).
 use_opus_fixed_point = current_cpu == "arm" || current_cpu == "arm64"
 
@@ skipping 104 matching lines @@
     include_dirs += [ "src/silk/float" ]
   }
 
   if (use_opus_arm_optimization) {
     sources += [
       "src/celt/arm/fixed_armv4.h",
       "src/celt/arm/fixed_armv5e.h",
       "src/celt/arm/kiss_fft_armv4.h",
       "src/celt/arm/kiss_fft_armv5e.h",
       "src/celt/pitch_arm.h",
+      "src/silk/arm/SigProc_FIX_armv4.h",
+      "src/silk/arm/SigProc_FIX_armv5e.h",
       "src/silk/arm/macro_armv4.h",
       "src/silk/arm/macro_armv5e.h",
-      "src/silk/arm/SigProc_FIX_armv4.h",
-      "src/silk/arm/SigProc_FIX_armv5e.h",
     ]
 
     defines += [
       "OPUS_ARM_ASM",
       "OPUS_ARM_INLINE_ASM",
       "OPUS_ARM_INLINE_EDSP",
     ]
 
     if (use_opus_rtcd) {
       sources += [
+        "$target_gen_dir/celt_pitch_xcorr_arm_gnu.S",
         "src/celt/arm/arm_celt_map.c",
         "src/celt/arm/armcpu.c",
         "src/celt/arm/armcpu.h",
-        "$target_gen_dir/celt_pitch_xcorr_arm_gnu.S",
       ]
 
       defines += [
         "OPUS_ARM_MAY_HAVE_EDSP",
         "OPUS_ARM_MAY_HAVE_MEDIA",
         "OPUS_ARM_MAY_HAVE_NEON",
         "OPUS_HAVE_RTCD",
       ]
 
       deps = [
@@ skipping 99 matching lines @@
   configs -= [ "//build/config/compiler:chromium_code" ]
   configs += [
     "//build/config/compiler:no_chromium_code",
     ":opus_test_config",
   ]
 
   deps = [
     ":opus",
   ]
 }