remove (unused) scale parameter from measureText

src/core/SkPaint.cpp

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkPaint.h"
 #include "SkAnnotation.h"
 #include "SkAutoKern.h"
@@ skipping 1082 matching lines @@
                 x += advance(*g, xyIndex);
             }
         }
     }
     SkASSERT(text == stop);
 
     *count = n;
     return Sk48Dot16ToScalar(x);
 }
 
-SkScalar SkPaint::measureText(const void* textData, size_t length,
-                              SkRect* bounds, SkScalar zoom) const {
+SkScalar SkPaint::measureText(const void* textData, size_t length, SkRect* bounds) const {
     const char* text = (const char*)textData;
     SkASSERT(text != NULL || length == 0);
 
     SkCanonicalizePaint canon(*this);
     const SkPaint& paint = canon.getPaint();
     SkScalar scale = canon.getScale();
 
-    SkMatrix zoomMatrix, *zoomPtr = NULL;
-    if (zoom) {
-        zoomMatrix.setScale(zoom, zoom);
-        zoomPtr = &zoomMatrix;
-    }
-
-    SkAutoGlyphCache    autoCache(paint, NULL, zoomPtr);
+    SkAutoGlyphCache    autoCache(paint, NULL, NULL);
     SkGlyphCache*       cache = autoCache.getCache();
 
     SkScalar width = 0;
 
     if (length > 0) {
         int tempCount;
 
         width = paint.measure_text(cache, text, length, &tempCount, bounds);
         if (scale) {
             width = SkScalarMul(width, scale);
@@ skipping 1549 matching lines @@
     F_UNREF(Looper,      readDrawLooper);
     F_UNREF(ImageFilter, readImageFilter);
     F(Typeface,    readTypeface);
 #undef F
 #undef F_UNREF
     if (dirty & kAnnotation_DirtyBit) {
         paint->setAnnotation(SkAnnotation::Create(buffer))->unref();
     }
     SkASSERT(dirty == paint->fDirtyBits);
 }