Add SkDebugf trace event handler.

Also adds more trace events to GPU backend.

Change-Id: Ifa5f0cd4b1fd582f0cc30d37d9e6414dc498c75d
Reviewed-on: https://skia-review.googlesource.com/24622
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/tools/flags/SkCommonFlags.cpp b/tools/flags/SkCommonFlags.cpp
index 0148bcd820..35fc0cf82f 100644
--- a/tools/flags/SkCommonFlags.cpp
+++ b/tools/flags/SkCommonFlags.cpp
@@ -72,6 +72,8 @@ DEFINE_bool(forceAnalyticAA, false, "Force analytic anti-aliasing even if the pa
                                     "whether it's concave or convex, we consider a path complicated"
                                     "if its number of points is comparable to its resolution.");
 
+DEFINE_bool(trace, false, "Show trace events using SkDebugf.");
+
 bool CollectImages(SkCommandLineFlags::StringArray images, SkTArray<SkString>* output) {
     SkASSERT(output);