remove SK_SCALAR_IS_[FLOAT,FIXED] and assume floats

tests/WritePixelsTest.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Test.h"
 #include "SkBitmapDevice.h"
 #include "SkCanvas.h"
@@ skipping 279 matching lines @@
 };
 
 struct CanvasConfig {
     DevType fDevType;
     bool fTightRowBytes;
 };
 
 static const CanvasConfig gCanvasConfigs[] = {
     {kRaster_DevType, true},
     {kRaster_DevType, false},
-#if SK_SUPPORT_GPU && defined(SK_SCALAR_IS_FLOAT)
+#if SK_SUPPORT_GPU
     {kGpu_BottomLeft_DevType, true}, // row bytes has no meaning on gpu devices
     {kGpu_TopLeft_DevType, true}, // row bytes has no meaning on gpu devices
 #endif
 };
 
 static SkBaseDevice* createDevice(const CanvasConfig& c, GrContext* grCtx) {
     switch (c.fDevType) {
         case kRaster_DevType: {
             SkBitmap bmp;
             size_t rowBytes = c.fTightRowBytes ? 0 : 4 * DEV_W + 100;
@@ skipping 154 matching lines @@
                         REPORTER_ASSERT(reporter, intersects == (idBefore != idAfter));
                     }
                 }
             }
         }
     }
 }
 
 #include "TestClassDef.h"
 DEFINE_GPUTESTCLASS("WritePixels", WritePixelsTestClass, WritePixelsTest)