Remove SkCanvas matrix ops return value.

src/device/xps/SkXPSDevice.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.
  */
 
 #ifndef UNICODE
 #define UNICODE
 #endif
@@ skipping 1678 matching lines @@
     SkMatrix matrix = *d.fMatrix;
     SkPath* skeletalPath = const_cast<SkPath*>(&platonicPath);
     if (prePathMatrix) {
         if (paintHasPathEffect || paint->getRasterizer()) {
             if (!pathIsMutable) {
                 skeletalPath = &modifiedPath;
                 pathIsMutable = true;
             }
             platonicPath.transform(*prePathMatrix, skeletalPath);
         } else {
-            if (!matrix.preConcat(*prePathMatrix)) {
-                return;
-            }
+            matrix.preConcat(*prePathMatrix);
         }
     }
 
     //Apply path effect [Skeletal-path -> Fillable-path].
     SkPath* fillablePath = skeletalPath;
     if (paintHasPathEffect) {
         if (!pathIsMutable) {
             fillablePath = &modifiedPath;
             pathIsMutable = true;
         }
@@ skipping 730 matching lines @@
              IID_PPV_ARGS(&this->fXpsFactory)),
          "Could not create factory for layer.");
 
     HRVM(this->fXpsFactory->CreateCanvas(&this->fCurrentXpsCanvas),
          "Could not create canvas for layer.");
 }
 
 bool SkXPSDevice::allowImageFilter(const SkImageFilter*) {
     return false;
 }