[sql] Import reference version of SQLite 3.7.6.3.

third_party/sqlite/sqlite-src-3070603/src/pcache1.c

Index: third_party/sqlite/sqlite-src-3070603/src/pcache1.c
diff --git a/third_party/sqlite/src/src/pcache1.c b/third_party/sqlite/sqlite-src-3070603/src/pcache1.c
similarity index 99%
copy from third_party/sqlite/src/src/pcache1.c
copy to third_party/sqlite/sqlite-src-3070603/src/pcache1.c
index e4d0705213e3f1f8a9d664cbd0ee297cf6b1dab7..ad443954bffd0901fcc3e0e93a3b0788d7b997c4 100644
--- a/third_party/sqlite/src/src/pcache1.c
+++ b/third_party/sqlite/sqlite-src-3070603/src/pcache1.c
@@ -549,12 +549,10 @@ static sqlite3_pcache *pcache1Create(int szPage, int bPurgeable){
   int sz;               /* Bytes of memory required to allocate the new cache */
 
   /*
-  ** The separateCache variable is true if each PCache has its own private
+  ** The seperateCache variable is true if each PCache has its own private
   ** PGroup.  In other words, separateCache is true for mode (1) where no
   ** mutexing is required.
   **
-  **   *  Always use separate caches (mode-1) if SQLITE_SEPARATE_CACHE_POOLS
-  **
   **   *  Always use a unified cache (mode-2) if ENABLE_MEMORY_MANAGEMENT
   **
   **   *  Always use a unified cache in single-threaded applications
@@ -562,9 +560,7 @@ static sqlite3_pcache *pcache1Create(int szPage, int bPurgeable){
   **   *  Otherwise (if multi-threaded and ENABLE_MEMORY_MANAGEMENT is off)
   **      use separate caches (mode-1)
   */
-#ifdef SQLITE_SEPARATE_CACHE_POOLS
-  const int separateCache = 1;
-#elif defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) || SQLITE_THREADSAFE==0
+#if defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) || SQLITE_THREADSAFE==0
   const int separateCache = 0;
 #else
   int separateCache = sqlite3GlobalConfig.bCoreMutex>0;