constant means constant

Strip all the "constant" verbiage out of stages that really just mean 1, single, scalar.

CQ_INCLUDE_TRYBOTS=skia.primary:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD

Change-Id: I3d71202b348fadc3ced8ecb6c18c939cf92d7243
Reviewed-on: https://skia-review.googlesource.com/5396
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
diff --git a/src/core/SkRasterPipelineBlitter.cpp b/src/core/SkRasterPipelineBlitter.cpp
index 075da1a..d7d66cf 100644
--- a/src/core/SkRasterPipelineBlitter.cpp
+++ b/src/core/SkRasterPipelineBlitter.cpp
@@ -57,9 +57,9 @@
 
     // These values are pointed to by the compiled blit functions
     // above, which allows us to adjust them from call to call.
-    void*       fDstPtr           = nullptr;
-    const void* fMaskPtr          = nullptr;
-    float       fConstantCoverage = 0.0f;
+    void*       fDstPtr          = nullptr;
+    const void* fMaskPtr         = nullptr;
+    float       fCurrentCoverage = 0.0f;
 
     // Scratch space for shaders and color filters to use.
     char            fScratch[64];
@@ -120,7 +120,7 @@
             return earlyOut();
         }
         if (!is_opaque) {
-            pipeline->append(SkRasterPipeline::scale_constant_float,
+            pipeline->append(SkRasterPipeline::scale_1_float,
                              &paintColor->fVec[SkPM4f::A]);
         }
 
@@ -223,13 +223,13 @@
         SkRasterPipeline p;
         p.extend(fShader);
         if (fBlend == SkBlendMode::kSrcOver) {
-            p.append(SkRasterPipeline::scale_constant_float, &fConstantCoverage);
+            p.append(SkRasterPipeline::scale_1_float, &fCurrentCoverage);
             this->append_load_d(&p);
             this->append_blend(&p);
         } else {
             this->append_load_d(&p);
             this->append_blend(&p);
-            p.append(SkRasterPipeline::lerp_constant_float, &fConstantCoverage);
+            p.append(SkRasterPipeline::lerp_1_float, &fCurrentCoverage);
         }
         this->maybe_clamp(&p);
         this->append_store(&p);
@@ -242,7 +242,7 @@
             case 0x00:                       break;
             case 0xff: this->blitH(x,y,run); break;
             default:
-                fConstantCoverage = *aa * (1/255.0f);
+                fCurrentCoverage = *aa * (1/255.0f);
                 fBlitAntiH(x,y, run);
         }
         x    += run;