diff --git a/adb/.clang-format b/adb/.clang-format
index 6737535..fc4eb1b 100644
--- a/adb/.clang-format
+++ b/adb/.clang-format
@@ -2,6 +2,7 @@
 AllowShortBlocksOnASingleLine: false
 AllowShortFunctionsOnASingleLine: false
 
+AccessModifierOffset: -2
 ColumnLimit: 100
 CommentPragmas: NOLINT:.*
 DerivePointerAlignment: false
diff --git a/base/test_utils.cpp b/base/test_utils.cpp
index 337ba7c..635af6c 100644
--- a/base/test_utils.cpp
+++ b/base/test_utils.cpp
@@ -16,7 +16,6 @@
 
 #include "android-base/logging.h"
 #include "android-base/test_utils.h"
-#include "utils/Compat.h" // For OS_PATH_SEPARATOR.
 
 #include <fcntl.h>
 #include <stdio.h>
@@ -27,6 +26,9 @@
 #if defined(_WIN32)
 #include <windows.h>
 #include <direct.h>
+#define OS_PATH_SEPARATOR '\\'
+#else
+#define OS_PATH_SEPARATOR '/'
 #endif
 
 #include <string>
diff --git a/healthd/Android.mk b/healthd/Android.mk
index 27c985c..5d207e3 100644
--- a/healthd/Android.mk
+++ b/healthd/Android.mk
@@ -10,13 +10,23 @@
 
 include $(CLEAR_VARS)
 
+ifeq ($(strip $(BOARD_CHARGER_NO_UI)),true)
+LOCAL_CHARGER_NO_UI := true
+endif
+ifdef BRILLO
+LOCAL_CHARGER_NO_UI := true
+endif
+
 LOCAL_SRC_FILES := \
 	healthd.cpp \
 	healthd_mode_android.cpp \
-	healthd_mode_charger.cpp \
 	BatteryMonitor.cpp \
 	BatteryPropertiesRegistrar.cpp
 
+ifneq ($(strip $(LOCAL_CHARGER_NO_UI)),true)
+LOCAL_SRC_FILES += healthd_mode_charger.cpp
+endif
+
 LOCAL_MODULE := healthd
 LOCAL_MODULE_TAGS := optional
 LOCAL_FORCE_STATIC_EXECUTABLE := true
@@ -33,9 +43,19 @@
 LOCAL_CFLAGS += -DCHARGER_ENABLE_SUSPEND
 endif
 
+ifeq ($(strip $(LOCAL_CHARGER_NO_UI)),true)
+LOCAL_CFLAGS += -DCHARGER_NO_UI
+endif
+
 LOCAL_C_INCLUDES := bootable/recovery
 
-LOCAL_STATIC_LIBRARIES := libbatteryservice libbinder libminui libpng libz libutils libcutils liblog libm libc
+LOCAL_STATIC_LIBRARIES := libbatteryservice libbinder
+
+ifneq ($(strip $(LOCAL_CHARGER_NO_UI)),true)
+LOCAL_STATIC_LIBRARIES += libminui libpng libz
+endif
+
+LOCAL_STATIC_LIBRARIES += libutils libcutils liblog libm libc
 
 ifeq ($(strip $(BOARD_CHARGER_ENABLE_SUSPEND)),true)
 LOCAL_STATIC_LIBRARIES += libsuspend
@@ -50,6 +70,7 @@
 include $(BUILD_EXECUTABLE)
 
 
+ifneq ($(strip $(LOCAL_CHARGER_NO_UI)),true)
 define _add-charger-image
 include $$(CLEAR_VARS)
 LOCAL_MODULE := system_core_charger_$(notdir $(1))
@@ -75,3 +96,4 @@
 
 _add-charger-image :=
 _img_modules :=
+endif # LOCAL_CHARGER_NO_UI
diff --git a/healthd/healthd.cpp b/healthd/healthd.cpp
index 85888c3..9b47334 100644
--- a/healthd/healthd.cpp
+++ b/healthd/healthd.cpp
@@ -109,10 +109,17 @@
 };
 
 static struct healthd_mode_ops charger_ops = {
+#ifdef CHARGER_NO_UI
+    .init = healthd_mode_nop_init,
+    .preparetowait = healthd_mode_nop_preparetowait,
+    .heartbeat = healthd_mode_nop_heartbeat,
+    .battery_update = healthd_mode_nop_battery_update,
+#else
     .init = healthd_mode_charger_init,
     .preparetowait = healthd_mode_charger_preparetowait,
     .heartbeat = healthd_mode_charger_heartbeat,
     .battery_update = healthd_mode_charger_battery_update,
+#endif
 };
 
 static struct healthd_mode_ops recovery_ops = {
diff --git a/libcutils/tests/PropertiesTest.cpp b/libcutils/tests/PropertiesTest.cpp
index 659821c..22ca706 100644
--- a/libcutils/tests/PropertiesTest.cpp
+++ b/libcutils/tests/PropertiesTest.cpp
@@ -15,7 +15,7 @@
  */
 
 #define LOG_TAG "Properties_test"
-#include <utils/Log.h>
+#include <cutils/log.h>
 #include <gtest/gtest.h>
 
 #include <cutils/properties.h>
diff --git a/liblog/fake_log_device.c b/liblog/fake_log_device.c
index a6d9a34..4942c08 100644
--- a/liblog/fake_log_device.c
+++ b/liblog/fake_log_device.c
@@ -69,7 +69,7 @@
     int     fakeFd;
 
     /* a printable name for this fake device */
-    char   *debugName;
+    char   debugName[sizeof("/dev/log/security")];
 
     /* nonzero if this is a binary log */
     int     isBinary;
@@ -123,8 +123,8 @@
  * File descriptor management.
  */
 #define FAKE_FD_BASE 10000
-#define MAX_OPEN_LOGS 16
-static LogState *openLogTable[MAX_OPEN_LOGS];
+#define MAX_OPEN_LOGS 8
+static LogState openLogTable[MAX_OPEN_LOGS];
 
 /*
  * Allocate an fd and associate a new LogState with it.
@@ -134,11 +134,10 @@
 {
     size_t i;
 
-    for (i = 0; i < sizeof(openLogTable); i++) {
-        if (openLogTable[i] == NULL) {
-            openLogTable[i] = calloc(1, sizeof(LogState));
-            openLogTable[i]->fakeFd = FAKE_FD_BASE + i;
-            return openLogTable[i];
+    for (i = 0; i < (sizeof(openLogTable) / sizeof(openLogTable[0])); i++) {
+        if (openLogTable[i].fakeFd == 0) {
+            openLogTable[i].fakeFd = FAKE_FD_BASE + i;
+            return &openLogTable[i];
         }
     }
     return NULL;
@@ -150,7 +149,7 @@
 static LogState *fdToLogState(int fd)
 {
     if (fd >= FAKE_FD_BASE && fd < FAKE_FD_BASE + MAX_OPEN_LOGS) {
-        return openLogTable[fd - FAKE_FD_BASE];
+        return &openLogTable[fd - FAKE_FD_BASE];
     }
     return NULL;
 }
@@ -166,9 +165,7 @@
 
     ls = fdToLogState(fd);
     if (ls != NULL) {
-        openLogTable[fd - FAKE_FD_BASE] = NULL;
-        free(ls->debugName);
-        free(ls);
+        memset(&openLogTable[fd - FAKE_FD_BASE], 0, sizeof(openLogTable[0]));
     }
 
     unlock();
@@ -191,10 +188,12 @@
 {
     static const int kDevLogLen = sizeof("/dev/log/") - 1;
 
-    logState->debugName = strdup(pathName);
+    strncpy(logState->debugName, pathName, sizeof(logState->debugName));
+    logState->debugName[sizeof(logState->debugName) - 1] = '\0';
 
     /* identify binary logs */
-    if (strcmp(pathName + kDevLogLen, "events") == 0) {
+    if (!strcmp(pathName + kDevLogLen, "events") ||
+            !strcmp(pathName + kDevLogLen, "security")) {
         logState->isBinary = 1;
     }
 
@@ -218,8 +217,7 @@
 
             i = 0;
             while (*tags != '\0' && !isspace(*tags) && *tags != ':' &&
-                i < kMaxTagLen)
-            {
+                    i < kMaxTagLen) {
                 tagName[i++] = *tags++;
             }
             if (i == kMaxTagLen) {
@@ -320,9 +318,9 @@
     };
     int idx;
 
-    idx = (int) priority - (int) ANDROID_LOG_VERBOSE;
+    idx = (int)priority - (int)ANDROID_LOG_VERBOSE;
     if (idx < 0 ||
-        idx >= (int) (sizeof(priorityStrings) / sizeof(priorityStrings[0])))
+            idx >= (int)(sizeof(priorityStrings) / sizeof(priorityStrings[0])))
         return "?unknown?";
     return priorityStrings[idx];
 }
@@ -454,13 +452,15 @@
     while (p < end) {
         if (*p++ == '\n') numLines++;
     }
-    if (p > msg && *(p-1) != '\n') numLines++;
+    if (p > msg && *(p-1) != '\n') {
+        numLines++;
+    }
 
     /*
      * Create an array of iovecs large enough to write all of
      * the lines with a prefix and a suffix.
      */
-    const size_t INLINE_VECS = 6;
+    const size_t INLINE_VECS = 64;
     const size_t MAX_LINES   = ((size_t)~0)/(3*sizeof(struct iovec*));
     struct iovec stackVec[INLINE_VECS];
     struct iovec* vec = stackVec;
@@ -494,7 +494,9 @@
             v++;
         }
         const char* start = p;
-        while (p < end && *p != '\n') p++;
+        while (p < end && *p != '\n') {
+            p++;
+        }
         if ((p-start) > 0) {
             v->iov_base = (void*)start;
             v->iov_len = p-start;
diff --git a/liblog/logd_write.c b/liblog/logd_write.c
index 4946073..b173d1a 100644
--- a/liblog/logd_write.c
+++ b/liblog/logd_write.c
@@ -125,7 +125,7 @@
 
 #if FAKE_LOG_DEVICE
     for (i = 0; i < LOG_ID_MAX; i++) {
-        char buf[sizeof("/dev/log_system")];
+        char buf[sizeof("/dev/log_security")];
         snprintf(buf, sizeof(buf), "/dev/log_%s", android_log_id_to_name(i));
         log_fds[i] = fakeLogOpen(buf, O_WRONLY);
     }
diff --git a/libpackagelistparser/packagelistparser.c b/libpackagelistparser/packagelistparser.c
index 16052e2..e309027 100644
--- a/libpackagelistparser/packagelistparser.c
+++ b/libpackagelistparser/packagelistparser.c
@@ -27,7 +27,7 @@
 #include <sys/limits.h>
 
 #define LOG_TAG "packagelistparser"
-#include <utils/Log.h>
+#include <cutils/log.h>
 
 #include <packagelistparser/packagelistparser.h>
 
diff --git a/logcat/logcat.cpp b/logcat/logcat.cpp
index ddc91ca..c148d89 100644
--- a/logcat/logcat.cpp
+++ b/logcat/logcat.cpp
@@ -35,7 +35,7 @@
 #include <log/logd.h>
 #include <log/logger.h>
 #include <log/logprint.h>
-#include <utils/threads.h>
+#include <system/thread_defs.h>
 
 #define DEFAULT_MAX_ROTATED_LOGS 4