Add getFloat/setFloat funcs to SkMatrix44

These match the existing getDouble/setDouble functions.

R=reed@google.com, tomhudson@chromium.org

Author: enne@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23757031

git-svn-id: http://skia.googlecode.com/svn/trunk/include@11355 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/utils/SkMatrix44.h b/utils/SkMatrix44.h
index 9d9b6e0..6e85bb5 100644
--- a/utils/SkMatrix44.h
+++ b/utils/SkMatrix44.h
@@ -224,6 +224,12 @@
     inline void setDouble(int row, int col, double value) {
         this->set(row, col, SkDoubleToMScalar(value));
     }
+    inline float getFloat(int row, int col) const {
+        return SkMScalarToFloat(this->get(row, col));
+    }
+    inline void setFloat(int row, int col, float value) {
+        this->set(row, col, SkFloatToMScalar(value));
+    }
 
     /** These methods allow one to efficiently read matrix entries into an
      *  array. The given array must have room for exactly 16 entries. Whenever