fix warnings around size_t/int

src/core/SkDescriptor.h

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkDescriptor_DEFINED
@@ skipping 19 matching lines @@
         sk_free(desc);
     }
 
     void init() {
         fLength = sizeof(SkDescriptor);
         fCount  = 0;
     }
 
     uint32_t getLength() const { return fLength; }
 
-    void* addEntry(uint32_t tag, uint32_t length, const void* data = NULL) {
+    void* addEntry(uint32_t tag, size_t length, const void* data = NULL) {
         SkASSERT(tag);
         SkASSERT(SkAlign4(length) == length);
         SkASSERT(this->findEntry(tag, NULL) == NULL);
 
         Entry*  entry = (Entry*)((char*)this + fLength);
         entry->fTag = tag;
-        entry->fLen = length;
+        entry->fLen = SkToU32(length);
         if (data) {
             memcpy(entry + 1, data, length);
         }
 
         fCount += 1;
         fLength += sizeof(Entry) + length;
         return (entry + 1); // return its data
     }
 
     void computeChecksum() {
@@ skipping 98 matching lines @@
                         + sizeof(SkDescriptor::Entry) + sizeof(void*)                   // for typeface
                         + 32   // slop for occational small extras
     };
     SkDescriptor*   fDesc;
     uint32_t        fStorage[(kStorageSize + 3) >> 2];
 };
 #define SkAutoDescriptor(...) SK_REQUIRE_LOCAL_VAR(SkAutoDescriptor)
 
 
 #endif