Save comparisons for release.

tools/viewer/sk_app/android/surface_glue_android.cpp

Index: tools/viewer/sk_app/android/surface_glue_android.cpp
diff --git a/tools/viewer/sk_app/android/surface_glue_android.cpp b/tools/viewer/sk_app/android/surface_glue_android.cpp
index 9e35407255f8956eea8d1496692d7684886a4ede..dfe81f53020c012334e9debd064488b563a6d608 100644
--- a/tools/viewer/sk_app/android/surface_glue_android.cpp
+++ b/tools/viewer/sk_app/android/surface_glue_android.cpp
@@ -77,11 +77,13 @@ void SkiaAndroidApp::paintIfNeeded() {
 }
 
 void SkiaAndroidApp::postMessage(const Message& message) const {
-    SkAssertResult(write(fPipes[1], &message, sizeof(message)) == sizeof(message));
+    SkDEBUGCODE(auto writeSize =) write(fPipes[1], &message, sizeof(message));
+    SkAssertResult(writeSize == sizeof(message));

[egdaniel, 2016/05/20 19:16:51]

here you just want SkASSERT since you don't want any of the code to execute in
release (it will actually crash on build since writeSize is no long declared in
release).

[liyuqian, 2016/05/20 19:25:30]

Done.

 }
 
 void SkiaAndroidApp::readMessage(Message* message) const {
-    SkAssertResult(read(fPipes[0], message, sizeof(Message)) == sizeof(Message));
+    SkDEBUGCODE(auto readSize =) read(fPipes[0], message, sizeof(Message));
+    SkAssertResult(readSize == sizeof(Message));
 }
 
 void SkiaAndroidApp::inval() {