Sample for GPU memory dumping using new SkTraceMemoryDump.

src/gpu/GrResourceCache.h

Index: src/gpu/GrResourceCache.h
diff --git a/src/gpu/GrResourceCache.h b/src/gpu/GrResourceCache.h
index 809c4f491e0ae3ba857cfc6668036dc61966d453..fb36f8aaf4c9c7c247db9e6e47ab75c50dfcd288 100644
--- a/src/gpu/GrResourceCache.h
+++ b/src/gpu/GrResourceCache.h
@@ -21,6 +21,7 @@
 #include "SkTMultiMap.h"
 
 class SkString;
+class SkTraceMemoryDump;
 
 /**
  * Manages the lifetime of all GrGpuResource instances.
@@ -129,7 +130,7 @@ public:
     GrGpuResource* findAndRefScratchResource(const GrScratchKey& scratchKey,
                                              size_t resourceSize,
                                              uint32_t flags);
-    
+
 #ifdef SK_DEBUG
     // This is not particularly fast and only used for validation, so debug only.
     int countScratchEntriesForKey(const GrScratchKey& scratchKey) const {
@@ -177,7 +178,7 @@ public:
         fOverBudgetCB = overBudgetCB;
         fOverBudgetData = data;
     }
-    
+
     void notifyFlushOccurred();
 
 #if GR_GPU_STATS
@@ -187,6 +188,9 @@ public:
     // This function is for unit testing and is only defined in test tools.
     void changeTimestamp(uint32_t newTimestamp);
 
+    /** Enumerates all cached resources and dumps their details to traceMemoryDump. */
+    void onMemoryDump(SkTraceMemoryDump* traceMemoryDump) const;
+
 private:
     ///////////////////////////////////////////////////////////////////////////
     /// @name Methods accessible via ResourceAccess
@@ -209,7 +213,7 @@ private:
     bool overBudget() const { return fBudgetedBytes > fMaxBytes || fBudgetedCount > fMaxCount; }
 
     bool wouldFit(size_t bytes) {
-        return fBudgetedBytes+bytes <= fMaxBytes && fBudgetedCount+1 <= fMaxCount;    
+        return fBudgetedBytes+bytes <= fMaxBytes && fBudgetedCount+1 <= fMaxCount;
     }
 
     uint32_t getNextTimestamp();