libcutils: Move list.c to inlines on list.h

(cherry picked from commit 0ea3624b3ef2a6545df770d06338c4655386220d)

Change-Id: I0572555a194d2560e74dfbf07abcec05e9a276a2
diff --git a/include/cutils/list.h b/include/cutils/list.h
index 72395f4..945729a 100644
--- a/include/cutils/list.h
+++ b/include/cutils/list.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2010 The Android Open Source Project
+ * Copyright (C) 2008-2013 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -49,9 +49,25 @@
          node != (list); \
          node = next, next = node->next)
 
-void list_init(struct listnode *list);
-void list_add_tail(struct listnode *list, struct listnode *item);
-void list_remove(struct listnode *item);
+static inline void list_init(struct listnode *node)
+{
+    node->next = node;
+    node->prev = node;
+}
+
+static inline void list_add_tail(struct listnode *head, struct listnode *item)
+{
+    item->next = head;
+    item->prev = head->prev;
+    head->prev->next = item;
+    head->prev = item;
+}
+
+static inline void list_remove(struct listnode *item)
+{
+    item->next->prev = item->prev;
+    item->prev->next = item->next;
+}
 
 #define list_empty(list) ((list) == (list)->next)
 #define list_head(list) ((list)->next)
diff --git a/libcutils/Android.mk b/libcutils/Android.mk
index c08a50f..93bccb0 100644
--- a/libcutils/Android.mk
+++ b/libcutils/Android.mk
@@ -37,7 +37,6 @@
 	config_utils.c \
 	cpu_info.c \
 	load_file.c \
-	list.c \
 	open_memstream.c \
 	strdup16to8.c \
 	strdup8to16.c \
diff --git a/libcutils/list.c b/libcutils/list.c
deleted file mode 100644
index e13452d..0000000
--- a/libcutils/list.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <cutils/list.h>
-
-void list_init(struct listnode *node)
-{
-    node->next = node;
-    node->prev = node;
-}
-
-void list_add_tail(struct listnode *head, struct listnode *item)
-{
-    item->next = head;
-    item->prev = head->prev;
-    head->prev->next = item;
-    head->prev = item;
-}
-
-void list_remove(struct listnode *item)
-{
-    item->next->prev = item->prev;
-    item->prev->next = item->next;
-}