Add onNewLockPixels, that returns rowbytes and relies on info in pixelref

src/core/SkMallocPixelRef.cpp

Index: src/core/SkMallocPixelRef.cpp
diff --git a/src/core/SkMallocPixelRef.cpp b/src/core/SkMallocPixelRef.cpp
index c3e605c358748b56cee33af1fb50b0c4f8ee6f19..c86d33bf18fb49044626bb8fee6e0d8934654d4e 100644
--- a/src/core/SkMallocPixelRef.cpp
+++ b/src/core/SkMallocPixelRef.cpp
@@ -152,7 +152,7 @@ SkMallocPixelRef::SkMallocPixelRef(const SkImageInfo& info, void* storage,
     fRB = rowBytes;
     SkSafeRef(ctable);
 
-    this->setPreLocked(fStorage, fCTable);
+    this->setPreLocked(fStorage, fRB, fCTable);
 }
 
 SkMallocPixelRef::SkMallocPixelRef(const SkImageInfo& info, void* storage,
@@ -174,8 +174,8 @@ SkMallocPixelRef::SkMallocPixelRef(const SkImageInfo& info, void* storage,
     fCTable = ctable;
     fRB = rowBytes;
     SkSafeRef(ctable);
-
-    this->setPreLocked(fStorage, fCTable);
+    
+    this->setPreLocked(fStorage, fRB, fCTable);
 }
 
 
@@ -186,9 +186,11 @@ SkMallocPixelRef::~SkMallocPixelRef() {
     }
 }
 
-void* SkMallocPixelRef::onLockPixels(SkColorTable** ctable) {
-    *ctable = fCTable;
-    return fStorage;
+bool SkMallocPixelRef::onNewLockPixels(LockRec* rec) {
+    rec->fPixels = fStorage;
+    rec->fRowBytes = fRB;
+    rec->fColorTable = fCTable;
+    return true;
 }
 
 void SkMallocPixelRef::onUnlockPixels() {
@@ -234,5 +236,5 @@ SkMallocPixelRef::SkMallocPixelRef(SkFlattenableReadBuffer& buffer)
         fCTable = NULL;
     }
 
-    this->setPreLocked(fStorage, fCTable);
+    this->setPreLocked(fStorage, fRB, fCTable);
 }