Merge changes from topic "freezer path"

* changes:
  libprocessgroup: define path for freezer search
  Revert^3 "libprocessgroup: move freezer to uid/pid hierarchy"
diff --git a/libprocessgroup/include/processgroup/processgroup.h b/libprocessgroup/include/processgroup/processgroup.h
index 4aa439a..1cadc9f 100644
--- a/libprocessgroup/include/processgroup/processgroup.h
+++ b/libprocessgroup/include/processgroup/processgroup.h
@@ -35,6 +35,8 @@
 #ifndef __ANDROID_VNDK__
 
 static constexpr const char* CGROUPS_RC_PATH = "/dev/cgroup_info/cgroup.rc";
+// Path to test against for freezer support
+static constexpr const char* CGROUP_FREEZE_PATH = "/sys/fs/cgroup/freezer/cgroup.freeze";
 
 bool UsePerAppMemcg();
 
diff --git a/libprocessgroup/profiles/cgroups.json b/libprocessgroup/profiles/cgroups.json
index 792af6f..5b7a28a 100644
--- a/libprocessgroup/profiles/cgroups.json
+++ b/libprocessgroup/profiles/cgroups.json
@@ -42,7 +42,7 @@
     "Controllers": [
       {
         "Controller": "freezer",
-        "Path": ".",
+        "Path": "freezer",
         "Mode": "0755",
         "UID": "system",
         "GID": "system"
diff --git a/libprocessgroup/profiles/task_profiles.json b/libprocessgroup/profiles/task_profiles.json
index 628098b..5b57bdd 100644
--- a/libprocessgroup/profiles/task_profiles.json
+++ b/libprocessgroup/profiles/task_profiles.json
@@ -46,7 +46,7 @@
       "File": "cpu.uclamp.latency_sensitive"
     },
     {
-      "Name": "Freezer",
+      "Name": "FreezerState",
       "Controller": "freezer",
       "File": "cgroup.freeze"
     }
@@ -70,11 +70,11 @@
       "Name": "Frozen",
       "Actions": [
         {
-          "Name": "SetAttribute",
+          "Name": "JoinCgroup",
           "Params":
           {
-            "Name": "Freezer",
-            "Value": "1"
+            "Controller": "freezer",
+            "Path": ""
           }
         }
       ]
@@ -83,11 +83,11 @@
       "Name": "Unfrozen",
       "Actions": [
         {
-          "Name": "SetAttribute",
+          "Name": "JoinCgroup",
           "Params":
           {
-            "Name": "Freezer",
-            "Value": "0"
+            "Controller": "freezer",
+            "Path": "../"
           }
         }
       ]