Try fixing unused-variable warnings another way.

src/opts/SkBlitRow_opts_arm.cpp

 /*
  * Copyright 2012 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBlitRow.h"
 #include "SkUtilsArm.h"
 
 #include "SkBlitRow_opts_arm_neon.h"
 
-static const SkBlitRow::Proc16 sk_blitrow_platform_565_procs_arm[] = {
+extern const SkBlitRow::Proc16 sk_blitrow_platform_565_procs_arm[] = {
     nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
 };
 
-static const SkBlitRow::ColorProc16 sk_blitrow_platform_565_colorprocs_arm[] = {
+extern const SkBlitRow::ColorProc16 sk_blitrow_platform_565_colorprocs_arm[] = {
     nullptr, nullptr,
 };
 
-static const SkBlitRow::Proc32 sk_blitrow_platform_32_procs_arm[] = {
+extern const SkBlitRow::Proc32 sk_blitrow_platform_32_procs_arm[] = {
     nullptr, nullptr, nullptr, nullptr,
 };
 
 SkBlitRow::Proc16 SkBlitRow::PlatformFactory565(unsigned flags) {
     return SK_ARM_NEON_WRAP(sk_blitrow_platform_565_procs_arm)[flags];
 }
 
 SkBlitRow::ColorProc16 SkBlitRow::PlatformColorFactory565(unsigned flags) {
     return SK_ARM_NEON_WRAP(sk_blitrow_platform_565_colorprocs_arm)[flags];
 }
 
 SkBlitRow::Proc32 SkBlitRow::PlatformProcs32(unsigned flags) {
     return SK_ARM_NEON_WRAP(sk_blitrow_platform_32_procs_arm)[flags];
 }