From c9db4db743afc8ddd0717f08099a2c41e19e637f Mon Sep 17 00:00:00 2001
From: jbauman <jbauman@chromium.org>
Date: Fri, 12 Dec 2014 17:42:59 -0800
Subject: [PATCH] Close renderer SharedBitmap file descriptors immediately
 after mapping

The file descriptors aren't needed anymore once the file is mapped, and we want to avoid running out.

BUG=364272,362048,434890,425766,412136,376441,436677

Review URL: https://codereview.chromium.org/799133003

Cr-Commit-Position: refs/heads/master@{#308217}
---
 content/child/child_shared_bitmap_manager.cc | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/content/child/child_shared_bitmap_manager.cc b/content/child/child_shared_bitmap_manager.cc
index 9dc86bd679b5..aa9f1f37ba6d 100644
--- a/content/child/child_shared_bitmap_manager.cc
+++ b/content/child/child_shared_bitmap_manager.cc
@@ -55,7 +55,13 @@ ChildSharedBitmapManager::~ChildSharedBitmapManager() {}
 
 scoped_ptr<cc::SharedBitmap> ChildSharedBitmapManager::AllocateSharedBitmap(
     const gfx::Size& size) {
-  return AllocateSharedMemoryBitmap(size);
+  scoped_ptr<SharedMemoryBitmap> bitmap = AllocateSharedMemoryBitmap(size);
+#if defined(OS_POSIX)
+  // Close file descriptor to avoid running out.
+  if (bitmap)
+    bitmap->shared_memory()->Close();
+#endif
+  return bitmap.Pass();
 }
 
 scoped_ptr<SharedMemoryBitmap>
-- 
2.11.4.GIT