Style Change: NULL->nullptr
DOCS_PREVIEW= https://skia.org/?cl=1316233002

Review URL: https://codereview.chromium.org/1316233002
diff --git a/src/gpu/GrResourceCache.cpp b/src/gpu/GrResourceCache.cpp
index 85a3021..e605856 100644
--- a/src/gpu/GrResourceCache.cpp
+++ b/src/gpu/GrResourceCache.cpp
@@ -72,13 +72,13 @@
     , fBytes(0)
     , fBudgetedCount(0)
     , fBudgetedBytes(0)
-    , fOverBudgetCB(NULL)
-    , fOverBudgetData(NULL)
-    , fFlushTimestamps(NULL)
+    , fOverBudgetCB(nullptr)
+    , fOverBudgetData(nullptr)
+    , fFlushTimestamps(nullptr)
     , fLastFlushTimestampIndex(0)
     , fPreferVRAMUseOverFlushes(caps->preferVRAMUseOverFlushes()) {
     SkDEBUGCODE(fCount = 0;)
-    SkDEBUGCODE(fNewlyPurgeableResourceForValidation = NULL;)
+    SkDEBUGCODE(fNewlyPurgeableResourceForValidation = nullptr;)
     this->resetFlushTimestamps();
 }
 
@@ -106,7 +106,7 @@
     static const int kMaxSupportedTimestampHistory = 128;
 
     if (fMaxUnusedFlushes > kMaxSupportedTimestampHistory) {
-        fFlushTimestamps = NULL;
+        fFlushTimestamps = nullptr;
         return;
     }
 
@@ -259,7 +259,7 @@
             this->validate();
             return resource;
         } else if (flags & kRequireNoPendingIO_ScratchFlag) {
-            return NULL;
+            return nullptr;
         }
         // We would prefer to consume more available VRAM rather than flushing
         // immediately, but on ANGLE this can lead to starving of the GPU.
@@ -267,7 +267,7 @@
             // kPrefer is specified, we didn't find a resource without pending io,
             // but there is still space in our budget for the resource so force
             // the caller to allocate a new resource.
-            return NULL;
+            return nullptr;
         }
     }
     resource = fScratchMap.find(scratchKey, AvailableForScratchUse(false));
@@ -302,7 +302,7 @@
     if (resource->getUniqueKey().isValid()) {
         SkASSERT(resource == fUniqueHash.find(resource->getUniqueKey()));
         fUniqueHash.remove(resource->getUniqueKey());
-        SkASSERT(NULL == fUniqueHash.find(resource->getUniqueKey()));
+        SkASSERT(nullptr == fUniqueHash.find(resource->getUniqueKey()));
     }
 
     // If another resource has the new key, remove its key then install the key on this resource.
@@ -319,7 +319,7 @@
                 old->cacheAccess().removeUniqueKey();
             }
         }
-        SkASSERT(NULL == fUniqueHash.find(newKey));
+        SkASSERT(nullptr == fUniqueHash.find(newKey));
         resource->cacheAccess().setUniqueKey(newKey);
         fUniqueHash.add(resource);
     } else {
@@ -363,7 +363,7 @@
         }
 #endif
         resource->cacheAccess().setTimestamp(this->getNextTimestamp());
-        SkDEBUGCODE(fNewlyPurgeableResourceForValidation = NULL);
+        SkDEBUGCODE(fNewlyPurgeableResourceForValidation = nullptr);
     }
 
     if (!SkToBool(ResourceAccess::kAllCntsReachedZero_RefNotificationFlag & flags)) {