Add onMemoryDump to GrContext

src/gpu/GrResourceCache.h

Index: src/gpu/GrResourceCache.h
diff --git a/src/gpu/GrResourceCache.h b/src/gpu/GrResourceCache.h
index 2171420a43f696fcde1c7dce1c9a7a6be157fbd8..f17c9f26777cedb4380e403fac21bb6f31d57baa 100644
--- a/src/gpu/GrResourceCache.h
+++ b/src/gpu/GrResourceCache.h
@@ -22,6 +22,7 @@
 
 class GrCaps;
 class SkString;
+class SkTraceMemoryDump;
 
 /**
  * Manages the lifetime of all GrGpuResource instances.
@@ -130,7 +131,7 @@ 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 {
@@ -178,7 +179,7 @@ public:
         fOverBudgetCB = overBudgetCB;
         fOverBudgetData = data;
     }
-    
+
     void notifyFlushOccurred();
 
 #if GR_GPU_STATS
@@ -188,6 +189,9 @@ 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 dumpMemoryStatistics(SkTraceMemoryDump* traceMemoryDump) const;
+
 private:
     ///////////////////////////////////////////////////////////////////////////
     /// @name Methods accessible via ResourceAccess
@@ -210,7 +214,7 @@ 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();