renamed SkSL types in preparation for killing precision modifiers

Bug: skia:
Change-Id: Iff0289e25355a89cdc289a0892ed755dd1b1c900
Reviewed-on: https://skia-review.googlesource.com/27703
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/glsl/GrGLSLProgramBuilder.cpp b/src/gpu/glsl/GrGLSLProgramBuilder.cpp
index 5c78c07..a3c20c3 100644
--- a/src/gpu/glsl/GrGLSLProgramBuilder.cpp
+++ b/src/gpu/glsl/GrGLSLProgramBuilder.cpp
@@ -239,8 +239,8 @@
                                        this->uniformHandler(),
                                        this->shaderCaps(),
                                        xp,
-                                       colorIn.size() ? colorIn.c_str() : "vec4(1)",
-                                       coverageIn.size() ? coverageIn.c_str() : "vec4(1)",
+                                       colorIn.size() ? colorIn.c_str() : "float4(1)",
+                                       coverageIn.size() ? coverageIn.c_str() : "float4(1)",
                                        fFS.getPrimaryColorOutputName(),
                                        fFS.getSecondaryColorOutputName(),
                                        dstTextureSamplerHandle,
@@ -455,7 +455,7 @@
     } else {
         this->nameVariable(&outName, '\0', baseName);
     }
-    fFS.codeAppendf("vec4 %s;", outName.c_str());
+    fFS.codeAppendf("float4 %s;", outName.c_str());
     *output = outName;
 }