Add VALIDATE_FAILURE_IS_A_TOOL_FAILURE to specify whether a failure in validation

means the tool should return failure or not. For now it is not defined, which
means any failed pixels are still reported to stdout, but the tool does not
return an error, allowing the bots to go green (until we can fix these failures).
Review URL: https://codereview.appspot.com/7105056

git-svn-id: http://skia.googlecode.com/svn/trunk@7211 2bbb7eff-a529-9590-31e7-b0007b416f81

tools/render_pictures_main.cpp

@@ -21,6 +21,10 @@
 #include "PictureRenderer.h"
 #include "picture_utils.h"
 
+// Define this if validation failures should cause the tool to return failure
+// If not, it will still printf the messages.
+//#define VALIDATE_FAILURE_IS_A_TOOL_FAILURE
+
 static void usage(const char* argv0) {
     SkDebugf("SkPicture rendering tool\n");
     SkDebugf("\n"
@@ -226,12 +230,17 @@ static bool render_picture(const SkString& inputPath, const SkString* outputDir,
                              x, y,
                              *referenceBitmap->getAddr32(x, y),
                              *bitmap->getAddr32(x, y));
+#ifdef VALIDATE_FAILURE_IS_A_TOOL_FAILURE
                     SkDELETE(bitmap);
                     SkDELETE(referenceBitmap);
                     return false;
+#else
+                    goto DONE;
+#endif
                 }
             }
         }
+    DONE:
         SkDELETE(referenceBitmap);
     }