Roll src/third_party/libvpx/source/libvpx/ 5c64c01c7..d7f1d60c5 (36 commits).

third_party/libvpx/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("//build/config/android/config.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//third_party/libvpx/libvpx_srcs.gni")
 import("//third_party/yasm/yasm_assemble.gni")
 
@@ skipping 20 matching lines @@
 
 if (is_nacl) {
   platform_include_dir = "//third_party/libvpx/source/config/nacl"
 } else {
   # The mac configurations are currently a relic. They were useful when
   # x86inc.asm did not work for MACH_O but now the build is identical to the
   # linux config. iOS for arm on the other hand needs an apple-specific twist in
   # vpx_config.asm
   if (is_ios && current_cpu == "arm") {
     os_category = current_os
-  } else if (is_posix) { # Should cover linux, mac, and the ios simulator.
+  } else if (is_posix) {  # Should cover linux, mac, and the ios simulator.
     os_category = "linux"
-  } else { # This should only match windows.
+  } else {  # This should only match windows.
     os_category = current_os
   }
   platform_include_dir =
       "//third_party/libvpx/source/config/$os_category/$cpu_arch_full"
 }
 
 config("libvpx_config") {
   include_dirs = [
     "//third_party/libvpx/source/config",
     platform_include_dir,
@@ skipping 273 matching lines @@
   }
   if (is_android) {
     deps += [ "//third_party/android_tools:cpu_features" ]
   }
   if (current_cpu == "arm" && arm_assembly_sources != []) {
     deps += [ ":libvpx_assembly_arm" ]
   }
 
   public_configs = [ ":libvpx_external_config" ]
 }