Try fixing unused-variable warnings another way.

src/opts/SkBlitRow_opts_arm.cpp

Index: src/opts/SkBlitRow_opts_arm.cpp
diff --git a/src/opts/SkBlitRow_opts_arm.cpp b/src/opts/SkBlitRow_opts_arm.cpp
index 24566ba6c5326a4d9a2e2a677862c56429440ff8..d4b1d0dd88dc100dde945b69dcfdb981c8a6520b 100644
--- a/src/opts/SkBlitRow_opts_arm.cpp
+++ b/src/opts/SkBlitRow_opts_arm.cpp
@@ -10,15 +10,15 @@
 
 #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,
 };