Defining new color constat for transparent color
Review URL: https://codereview.appspot.com/6901044

git-svn-id: http://skia.googlecode.com/svn/trunk@6696 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/PipeTest.cpp b/tests/PipeTest.cpp
index 7790c16..acf288a 100644
--- a/tests/PipeTest.cpp
+++ b/tests/PipeTest.cpp
@@ -32,7 +32,7 @@
     SkBitmap bm;
     bm.setConfig(SkBitmap::kARGB_8888_Config, 2, 2);
     bm.allocPixels();
-    bm.eraseColor(0);
+    bm.eraseColor(SK_ColorTRANSPARENT);
 
     SkShader* shader = SkShader::CreateBitmapShader(bm, SkShader::kClamp_TileMode,
                                                     SkShader::kClamp_TileMode);