Revert of Remove 'f' from 0.05f in shader code

src/gpu/effects/GrConvexPolyEffect.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrConvexPolyEffect.h"
 #include "GrInvariantOutput.h"
 #include "SkPath.h"
@@ skipping 212 matching lines @@
                                             cpe.getEdgeCount(),
                                             &edgeArrayName);
     GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
     fsBuilder->codeAppend("\t\tfloat alpha = 1.0;\n");
     fsBuilder->codeAppend("\t\tfloat edge;\n");
     const char* fragmentPos = fsBuilder->fragmentPosition();
     for (int i = 0; i < cpe.getEdgeCount(); ++i) {
         // Add a device space "nudge" of 0.05f, 0.05f to match raster's rounding behavior for
         // BW clipping/drawing. Since we are "nudging" fragment positions we have to go in
         // the opposite direction.
-        fsBuilder->codeAppendf("\t\tedge = dot(%s[%d], vec3(%s.x - 0.05, %s.y - 0.05, 1));\n",
+        fsBuilder->codeAppendf("\t\tedge = dot(%s[%d], vec3(%s.x - 0.05f, %s.y - 0.05f, 1));\n",
                                edgeArrayName, i, fragmentPos, fragmentPos);
         if (GrProcessorEdgeTypeIsAA(cpe.getEdgeType())) {
             fsBuilder->codeAppend("\t\tedge = clamp(edge, 0.0, 1.0);\n");
         } else {
             fsBuilder->codeAppend("\t\tedge = edge >= 0.5 ? 1.0 : 0.0;\n");
         }
         fsBuilder->codeAppend("\t\talpha *= edge;\n");
     }
 
     // Woe is me. See skbug.com/2149.
@@ skipping 137 matching lines @@
     }
 
     GrFragmentProcessor* fp;
     do {
         GrPrimitiveEdgeType edgeType = static_cast<GrPrimitiveEdgeType>(
                                         random->nextULessThan(kGrProcessorEdgeTypeCnt));
         fp = GrConvexPolyEffect::Create(edgeType, count, edges);
     } while (NULL == fp);
     return fp;
 }