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

Review URL: https://codereview.chromium.org/1316233002
diff --git a/src/animator/SkDisplayable.cpp b/src/animator/SkDisplayable.cpp
index 52532fe..dc3cecf 100644
--- a/src/animator/SkDisplayable.cpp
+++ b/src/animator/SkDisplayable.cpp
@@ -64,14 +64,14 @@
 }
 
 SkDisplayable* SkDisplayable::contains(const SkString& ) {
-    return NULL;
+    return nullptr;
 }
 
 SkDisplayable* SkDisplayable::deepCopy(SkAnimateMaker* maker) {
     SkDisplayTypes type = getType();
     if (type == SkType_Unknown) {
         SkASSERT(0);
-        return NULL;
+        return nullptr;
     }
     SkDisplayable* copy = SkDisplayType::CreateInstance(maker, type);
     int index = -1;
@@ -79,7 +79,7 @@
     const SkMemberInfo* info;
     do {
         info = copy->getMember(++index);
-        if (info == NULL)
+        if (info == nullptr)
             break;
         if (info->fType == SkType_MemberProperty) {
             SkScriptValue value;
@@ -93,7 +93,7 @@
         if (info->fType == SkType_Array) {
             SkTDOperandArray* array = (SkTDOperandArray*) info->memberData(this);
             int arrayCount;
-            if (array == NULL || (arrayCount = array->count()) == 0)
+            if (array == nullptr || (arrayCount = array->count()) == 0)
                 continue;
             SkTDOperandArray* copyArray = (SkTDOperandArray*) info->memberData(copy);
             copyArray->setCount(arrayCount);
@@ -110,7 +110,7 @@
         }
         if (SkDisplayType::IsDisplayable(maker, info->fType)) {
             SkDisplayable** displayable = (SkDisplayable**) info->memberData(this);
-            if (*displayable == NULL || *displayable == (SkDisplayable*) -1)
+            if (*displayable == nullptr || *displayable == (SkDisplayable*) -1)
                 continue;
             SkDisplayable* deeper = (*displayable)->deepCopy(maker);
             info->setMemberData(copy, deeper, sizeof(deeper));
@@ -160,7 +160,7 @@
     SkOperand blankValues[2];
     do {
         info = this->getMember(++index);
-        if (NULL == info) {
+        if (nullptr == info) {
             //SkDebugf("\n");
             break;
         }
@@ -185,7 +185,7 @@
         if (info->fType == SkType_Array) {
             SkTDOperandArray* array = (SkTDOperandArray*) info->memberData(this);
             int arrayCount;
-            if (array == NULL || (arrayCount = array->count()) == 0)
+            if (array == nullptr || (arrayCount = array->count()) == 0)
                 continue;
             SkDisplayTypes elementType;
             if (type == SkType_Array) {
@@ -259,12 +259,12 @@
     SkDisplayList::fIndent += 4;
     do {
         info = this->getMember(++index);
-        if (NULL == info) {
+        if (nullptr == info) {
             break;
         }
         if (SkDisplayType::IsDisplayable(maker, info->fType)) {
             SkDisplayable** displayable = (SkDisplayable**) info->memberData(this);
-            if (*displayable == NULL || *displayable == (SkDisplayable*) -1)
+            if (*displayable == nullptr || *displayable == (SkDisplayable*) -1)
                 continue;
             if (closedAngle == false) {
                 SkDebugf(">\n");
@@ -422,21 +422,21 @@
 }
 
 const SkFunctionParamType* SkDisplayable::getFunctionsParameters() {
-    return NULL;
+    return nullptr;
 }
 
 const SkMemberInfo* SkDisplayable::getMember(int index) {
-    return NULL;
+    return nullptr;
 }
 
 const SkMemberInfo* SkDisplayable::getMember(const char name[]) {
-    return NULL;
+    return nullptr;
 }
 
 const SkFunctionParamType* SkDisplayable::getParameters(const SkMemberInfo* info,
         int* paramCount) {
     const SkFunctionParamType* params = getFunctionsParameters();
-    SkASSERT(params != NULL);
+    SkASSERT(params != nullptr);
     int funcIndex = info->functionIndex();
     // !!! eventually break traversing params into an external function (maybe this whole function)
     int index = funcIndex;
@@ -456,7 +456,7 @@
 }
 
 SkDisplayable* SkDisplayable::getParent() const {
-    return NULL;
+    return nullptr;
 }
 
 bool SkDisplayable::getProperty(int index, SkScriptValue* ) const {
@@ -484,7 +484,7 @@
 void SkDisplayable::onEndElement(SkAnimateMaker& ) {}
 
 const SkMemberInfo* SkDisplayable::preferredChild(SkDisplayTypes type) {
-    return NULL;
+    return nullptr;
 }
 
 bool SkDisplayable::resolveIDs(SkAnimateMaker& maker, SkDisplayable* original, SkApply* apply) {