private iterator to visit all resource cache entries

samplecode/SampleApp.cpp

Index: samplecode/SampleApp.cpp
diff --git a/samplecode/SampleApp.cpp b/samplecode/SampleApp.cpp
index 318a8224c0adeb075e55379953abd1666ce2b034..b6e54705744371b6427c9d96abee96475aa5466b 100644
--- a/samplecode/SampleApp.cpp
+++ b/samplecode/SampleApp.cpp
@@ -1420,9 +1420,15 @@ bool SampleWindow::previousSample() {
     return true;
 }
 
+#include "SkResourceCache.h"
 bool SampleWindow::nextSample() {
     fCurrIndex = (fCurrIndex + 1) % fSamples.count();
     this->loadView((*fSamples[fCurrIndex])());
+
+    if (false) {
+        SkResourceCache::TestDumpMemoryStatistics();

[mtklein_C, 2015/08/04 20:27:37]

I take it this stuff is temporary?

[reed1, 2015/08/07 16:19:59]

Yea, just a place-holder until we find a UI way to trigger the dump (and/or dump
after running DM or nanobench)

+    }
+
     return true;
 }