Remove SkCanvas matrix ops return value.

include/core/SkCanvas.h

 /*
  * 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.
  */
 
 #ifndef SkCanvas_DEFINED
 #define SkCanvas_DEFINED
 
@@ skipping 443 matching lines @@
     void restoreToCount(int saveCount);
 
     /** Returns true if drawing is currently going to a layer (from saveLayer)
      *  rather than to the root device.
      */
     virtual bool isDrawingToLayer() const;
 
     /** Preconcat the current matrix with the specified translation
         @param dx   The distance to translate in X
         @param dy   The distance to translate in Y
-        returns true if the operation succeeded (e.g. did not overflow)
     */
-    bool translate(SkScalar dx, SkScalar dy);
+    void translate(SkScalar dx, SkScalar dy);
 
     /** Preconcat the current matrix with the specified scale.
         @param sx   The amount to scale in X
         @param sy   The amount to scale in Y
-        returns true if the operation succeeded (e.g. did not overflow)
     */
-    bool scale(SkScalar sx, SkScalar sy);
+    void scale(SkScalar sx, SkScalar sy);
 
     /** Preconcat the current matrix with the specified rotation.
         @param degrees  The amount to rotate, in degrees
-        returns true if the operation succeeded (e.g. did not overflow)
     */
-    bool rotate(SkScalar degrees);
+    void rotate(SkScalar degrees);
 
     /** Preconcat the current matrix with the specified skew.
         @param sx   The amount to skew in X
         @param sy   The amount to skew in Y
-        returns true if the operation succeeded (e.g. did not overflow)
     */
-    bool skew(SkScalar sx, SkScalar sy);
+    void skew(SkScalar sx, SkScalar sy);
 
     /** Preconcat the current matrix with the specified matrix.
         @param matrix   The matrix to preconcatenate with the current matrix
-        @return true if the operation succeeded (e.g. did not overflow)
     */
-    bool concat(const SkMatrix& matrix);
+    void concat(const SkMatrix& matrix);
 
     /** Replace the current matrix with a copy of the specified matrix.
         @param matrix The matrix that will be copied into the current matrix.
     */
     void setMatrix(const SkMatrix& matrix);
 
     /** Helper for setMatrix(identity). Sets the current matrix to identity.
     */
     void resetMatrix();
 
@@ skipping 991 matching lines @@
     bool asROBitmap(SkBitmap*) const;
 
 private:
     SkBitmap    fBitmap;    // used if peekPixels() fails
     const void* fAddr;      // NULL on failure
     SkImageInfo fInfo;
     size_t      fRowBytes;
 };
 
 #endif