diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/src/utils/android/ashmem.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/skia/trunk/src/utils/android/ashmem.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2008 The Android Open Source Project
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/*
+ * Implementation of the user-space ashmem API for devices, which have our
+ * ashmem-enabled kernel. See ashmem-sim.c for the "fake" tmp-based version,
+ * used by the simulator.
+ */
+
+#include <android/ashmem.h>
+
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+
+#include <linux/ashmem.h>
+
+#define ASHMEM_DEVICE   "/dev/ashmem"
+
+/*
+ * ashmem_create_region - creates a new ashmem region and returns the file
+ * descriptor, or <0 on error
+ *
+ * `name' is an optional label to give the region (visible in /proc/pid/maps)
+ * `size' is the size of the region, in page-aligned bytes
+ */
+int ashmem_create_region(const char *name, size_t size)
+{
+    int fd, ret;
+
+    fd = open(ASHMEM_DEVICE, O_RDWR);
+    if (fd < 0)
+        return fd;
+
+    if (name) {
+        char buf[ASHMEM_NAME_LEN];
+
+        strlcpy(buf, name, sizeof(buf));
+        ret = ioctl(fd, ASHMEM_SET_NAME, buf);
+        if (ret < 0)
+            goto error;
+    }
+
+    ret = ioctl(fd, ASHMEM_SET_SIZE, size);
+    if (ret < 0)
+        goto error;
+
+    return fd;
+
+error:
+    close(fd);
+    return ret;
+}
+
+int ashmem_set_prot_region(int fd, int prot)
+{
+    return ioctl(fd, ASHMEM_SET_PROT_MASK, prot);
+}
+
+int ashmem_pin_region(int fd, size_t offset, size_t len)
+{
+    struct ashmem_pin pin = { offset, len };
+    return ioctl(fd, ASHMEM_PIN, &pin);
+}
+
+int ashmem_unpin_region(int fd, size_t offset, size_t len)
+{
+    struct ashmem_pin pin = { offset, len };
+    return ioctl(fd, ASHMEM_UNPIN, &pin);
+}
+
+int ashmem_get_size_region(int fd)
+{
+  return ioctl(fd, ASHMEM_GET_SIZE, NULL);
+}
+
+int ashmem_purge_all_caches(int fd)
+{
+  return ioctl(fd, ASHMEM_PURGE_ALL_CACHES, NULL);
+}