Import SQLite 3.8.7.4.

third_party/sqlite/src/src/mem3.c

Index: third_party/sqlite/src/src/mem3.c
diff --git a/third_party/sqlite/src/src/mem3.c b/third_party/sqlite/src/src/mem3.c
index e2d66815b33431799e82b96b23b0e2a3fb1285fb..1a1b791f28f8cf3ce4f9a35cdad7b7107568c715 100644
--- a/third_party/sqlite/src/src/mem3.c
+++ b/third_party/sqlite/src/src/mem3.c
@@ -433,7 +433,7 @@ static void *memsys3MallocUnsafe(int nByte){
 ** This function assumes that the necessary mutexes, if any, are
 ** already held by the caller. Hence "Unsafe".
 */
-void memsys3FreeUnsafe(void *pOld){
+static void memsys3FreeUnsafe(void *pOld){
   Mem3Block *p = (Mem3Block*)pOld;
   int i;
   u32 size, x;
@@ -508,7 +508,7 @@ static void *memsys3Malloc(int nBytes){
 /*
 ** Free memory.
 */
-void memsys3Free(void *pPrior){
+static void memsys3Free(void *pPrior){
   assert( pPrior );
   memsys3Enter();
   memsys3FreeUnsafe(pPrior);
@@ -518,7 +518,7 @@ void memsys3Free(void *pPrior){
 /*
 ** Change the size of an existing memory allocation
 */
-void *memsys3Realloc(void *pPrior, int nBytes){
+static void *memsys3Realloc(void *pPrior, int nBytes){
   int nOld;
   void *p;
   if( pPrior==0 ){