rename blitrow::proc and add (uncalled) hook for colorproc16

src/opts/SkBlitRow_opts_mips_dsp.cpp

Index: src/opts/SkBlitRow_opts_mips_dsp.cpp
diff --git a/src/opts/SkBlitRow_opts_mips_dsp.cpp b/src/opts/SkBlitRow_opts_mips_dsp.cpp
index 3d4a3a06cd4884f19681c4133a250f5133421085..1db38baf5fb080d7e9c074275cdb2f8ac726363c 100644
--- a/src/opts/SkBlitRow_opts_mips_dsp.cpp
+++ b/src/opts/SkBlitRow_opts_mips_dsp.cpp
@@ -921,7 +921,7 @@ void blitmask_d565_opaque_mips(int width, int height, uint16_t* device,
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
-const SkBlitRow::Proc platform_565_procs_mips_dsp[] = {
+const SkBlitRow::Proc16 platform_565_procs_mips_dsp[] = {
     // no dither
     NULL,
     S32_D565_Blend_mips_dsp,
@@ -942,10 +942,14 @@ static const SkBlitRow::Proc32 platform_32_procs_mips_dsp[] = {
     NULL,   // S32A_Blend,
 };
 
-SkBlitRow::Proc SkBlitRow::PlatformProcs565(unsigned flags) {
+SkBlitRow::Proc16 SkBlitRow::PlatformFactory565(unsigned flags) {
     return platform_565_procs_mips_dsp[flags];
 }
 
+SkBlitRow::ColorProc16 SkBlitRow::PlatformColorFactory565(unsigned flags) {
+    return NULL;
+}
+
 SkBlitRow::Proc32 SkBlitRow::PlatformProcs32(unsigned flags) {
     return platform_32_procs_mips_dsp[flags];
 }