Reapply "Remove Bitmaps Raw Pixel Support."

This CL reapplies r4722. Now that we have addressed the issues
in Chrome tests that were causing asserts to be fired.

Review URL: https://codereview.appspot.com/6452050

git-svn-id: http://skia.googlecode.com/svn/trunk@4804 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 7 insertions, 2 deletions

diff --git a/src/core/SkMallocPixelRef.cpp b/src/core/SkMallocPixelRef.cpp
index 4bcf1bd16d..f0bc0578d6 100644
--- a/src/core/SkMallocPixelRef.cpp
+++ b/src/core/SkMallocPixelRef.cpp
@@ -10,21 +10,25 @@
 #include "SkFlattenable.h"
 
 SkMallocPixelRef::SkMallocPixelRef(void* storage, size_t size,
-                                   SkColorTable* ctable) {
+                                   SkColorTable* ctable, bool ownPixels) {
     if (NULL == storage) {
+        SkASSERT(ownPixels);
         storage = sk_malloc_throw(size);
     }
     fStorage = storage;
     fSize = size;
     fCTable = ctable;
     SkSafeRef(ctable);
+    fOwnPixels = ownPixels;
     
     this->setPreLocked(fStorage, fCTable);
 }
 
 SkMallocPixelRef::~SkMallocPixelRef() {
     SkSafeUnref(fCTable);
-    sk_free(fStorage);
+    if (fOwnPixels) {
+        sk_free(fStorage);
+    }
 }
 
 void* SkMallocPixelRef::onLockPixels(SkColorTable** ct) {
@@ -59,6 +63,7 @@ SkMallocPixelRef::SkMallocPixelRef(SkFlattenableReadBuffer& buffer)
     } else {
         fCTable = NULL;
     }
+    fOwnPixels = true;
 
     this->setPreLocked(fStorage, fCTable);
 }