325765 Cache causes crash crossing architecture [@ nsDiskCacheRecord::HashNumber].[@ nsDiskCacheMap::FindRecord]. Disk cache is not endian-neutral as was intended. Byte-swap the entire cache header. r=darin sr=smfr a/1.8=darin

netwerk/cache/src/nsDiskCache.h

@@ -53,7 +53,7 @@
 class nsDiskCache {
 public:
     enum {
-            kCurrentVersion = 0x00010007      // format = 16 bits major version/16 bits minor version
+            kCurrentVersion = 0x00010009      // format = 16 bits major version/16 bits minor version
     };
 
     enum { kData, kMetaData };

netwerk/cache/src/nsDiskCacheMap.h

@@ -358,6 +358,11 @@ struct nsDiskCacheHeader {
         mEntryCount  = htonl(mEntryCount);
         mIsDirty     = htonl(mIsDirty);
         mRecordCount = htonl(mRecordCount);
+
+        for (PRUint32 i = 0; i < kBuckets ; i++) {
+            mEvictionRank[i] = htonl(mEvictionRank[i]);
+            mBucketUsage[i]  = htonl(mBucketUsage[i]);
+        }
 #endif
     }
     
@@ -369,6 +374,11 @@ struct nsDiskCacheHeader {
         mEntryCount  = ntohl(mEntryCount);
         mIsDirty     = ntohl(mIsDirty);
         mRecordCount = ntohl(mRecordCount);
+
+        for (PRUint32 i = 0; i < kBuckets ; i++) {
+            mEvictionRank[i] = ntohl(mEvictionRank[i]);
+            mBucketUsage[i]  = ntohl(mBucketUsage[i]);
+        }
 #endif
     }
 };