Add //third_party/sqlite to dirs_to_snapshot, remove net_sql.patch

third_party/sqlite/patches/0003-Use-seperate-page-cache-pools-for-each-sqlite-connec.patch

Index: third_party/sqlite/patches/0003-Use-seperate-page-cache-pools-for-each-sqlite-connec.patch
diff --git a/third_party/sqlite/patches/0003-Use-seperate-page-cache-pools-for-each-sqlite-connec.patch b/third_party/sqlite/patches/0003-Use-seperate-page-cache-pools-for-each-sqlite-connec.patch
new file mode 100644
index 0000000000000000000000000000000000000000..d2678e76e44d521e871b8e3ea80704a4a1cf02cf
--- /dev/null
+++ b/third_party/sqlite/patches/0003-Use-seperate-page-cache-pools-for-each-sqlite-connec.patch
@@ -0,0 +1,44 @@
+From 3a6d9302ff14aec82291c7e2212ce37b7453ce9f Mon Sep 17 00:00:00 2001
+From: rmcilroy <rmcilroy@chromium.org>
+Date: Thu, 20 Jun 2013 22:50:12 +0000
+Subject: [PATCH 03/16] Use seperate page-cache pools for each sqlite
+ connection.
+
+Due to multiple different subsystems using sqlite, the shared global page
+cache policy does not suite our use-cases on Chrome very well.  This CL
+enables a compile time flag to be set to disable shared cache pools.
+
+BUG=243769
+
+Original review URL: https://chromiumcodereview.appspot.com/17413004
+---
+ third_party/sqlite/src/src/pcache1.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/third_party/sqlite/src/src/pcache1.c b/third_party/sqlite/src/src/pcache1.c
+index a8c3217..3fcee4b 100644
+--- a/third_party/sqlite/src/src/pcache1.c
++++ b/third_party/sqlite/src/src/pcache1.c
+@@ -567,6 +567,8 @@ static sqlite3_pcache *pcache1Create(int szPage, int szExtra, int bPurgeable){
+   ** 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
+@@ -574,7 +576,9 @@ static sqlite3_pcache *pcache1Create(int szPage, int szExtra, int bPurgeable){
+   **   *  Otherwise (if multi-threaded and ENABLE_MEMORY_MANAGEMENT is off)
+   **      use separate caches (mode-1)
+   */
+-#if defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) || SQLITE_THREADSAFE==0
++#ifdef SQLITE_SEPARATE_CACHE_POOLS
++  const int separateCache = 1;
++#elif defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) || SQLITE_THREADSAFE==0
+   const int separateCache = 0;
+ #else
+   int separateCache = sqlite3GlobalConfig.bCoreMutex>0;
+-- 
+2.2.1
+