Do not spam the debugging information

tools/viewer/sk_app/android/surface_glue_android.cpp

 /*
 * Copyright 2016 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
 #include "surface_glue_android.h"
 
 #include <jni.h>
@@ skipping 73 matching lines @@
 
 void SkiaAndroidApp::readMessage(Message* message) const {
     SkDEBUGCODE(auto readSize =) read(fPipes[0], message, sizeof(Message));
     SkASSERT(readSize == sizeof(Message));
 }
 
 int SkiaAndroidApp::message_callback(int fd, int events, void* data) {
     auto skiaAndroidApp = (SkiaAndroidApp*)data;
     Message message;
     skiaAndroidApp->readMessage(&message);
-    SkDebugf("message_callback %d", message.fType);
     SkASSERT(message.fType != kUndefined);
 
     switch (message.fType) {
         case kDestroyApp: {
             delete skiaAndroidApp;
             pthread_exit(nullptr);
             return 0;
         }
         case kContentInvalidated: {
             ((Window_android*)skiaAndroidApp->fWindow)->paintIfNeeded();
@@ skipping 157 matching lines @@
     const char* nameChars = env->GetStringUTFChars(stateName, nullptr);
     const char* valueChars = env->GetStringUTFChars(stateValue, nullptr);
     message.stateName = new SkString(nameChars);
     message.stateValue = new SkString(valueChars);
     skiaAndroidApp->postMessage(message);
     env->ReleaseStringUTFChars(stateName, nameChars);
     env->ReleaseStringUTFChars(stateValue, valueChars);
 }
 
 }  // namespace sk_app