diff --git a/camera/device/3.2/default/CameraDevice.cpp b/camera/device/3.2/default/CameraDevice.cpp
index 18e0e7b..0a457ad 100644
--- a/camera/device/3.2/default/CameraDevice.cpp
+++ b/camera/device/3.2/default/CameraDevice.cpp
@@ -15,11 +15,11 @@
  */
 
 #define LOG_TAG "CamDev@3.2-impl"
-#include <android/log.h>
+#include <utils/Log.h>
 
 #include <utils/Vector.h>
 #include <utils/Trace.h>
-#include "CameraDevice.h"
+#include "CameraDevice_3_2.h"
 #include <include/convert.h>
 
 namespace android {
diff --git a/camera/device/3.2/default/CameraDeviceSession.cpp b/camera/device/3.2/default/CameraDeviceSession.cpp
index 0f3d97b..3c3c078 100644
--- a/camera/device/3.2/default/CameraDeviceSession.cpp
+++ b/camera/device/3.2/default/CameraDeviceSession.cpp
@@ -29,198 +29,13 @@
 namespace V3_2 {
 namespace implementation {
 
-namespace {
-
-// Copy pasted from Hwc.cpp. Use this until gralloc mapper HAL is working
-class HandleImporter {
-public:
-    HandleImporter() : mInitialized(false) {}
-
-    bool initialize()
-    {
-        // allow only one client
-        if (mInitialized) {
-            return false;
-        }
-
-        if (!openGralloc()) {
-            return false;
-        }
-
-        mInitialized = true;
-        return true;
-    }
-
-    void cleanup()
-    {
-        if (!mInitialized) {
-            return;
-        }
-
-        closeGralloc();
-        mInitialized = false;
-    }
-
-    // In IComposer, any buffer_handle_t is owned by the caller and we need to
-    // make a clone for hwcomposer2.  We also need to translate empty handle
-    // to nullptr.  This function does that, in-place.
-    bool importBuffer(buffer_handle_t& handle)
-    {
-        if (!handle->numFds && !handle->numInts) {
-            handle = nullptr;
-            return true;
-        }
-
-        buffer_handle_t clone = cloneBuffer(handle);
-        if (!clone) {
-            return false;
-        }
-
-        handle = clone;
-        return true;
-    }
-
-    void freeBuffer(buffer_handle_t handle)
-    {
-        if (!handle) {
-            return;
-        }
-
-        releaseBuffer(handle);
-    }
-
-    bool importFence(const native_handle_t* handle, int& fd)
-    {
-        if (handle == nullptr || handle->numFds == 0) {
-            fd = -1;
-        } else if (handle->numFds == 1) {
-            fd = dup(handle->data[0]);
-            if (fd < 0) {
-                ALOGE("failed to dup fence fd %d", handle->data[0]);
-                return false;
-            }
-        } else {
-            ALOGE("invalid fence handle with %d file descriptors",
-                    handle->numFds);
-            return false;
-        }
-
-        return true;
-    }
-
-    void closeFence(int fd)
-    {
-        if (fd >= 0) {
-            close(fd);
-        }
-    }
-
-private:
-    bool mInitialized;
-
-    bool openGralloc()
-    {
-        const hw_module_t* module;
-        int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module);
-        if (err) {
-            ALOGE("failed to get gralloc module");
-            return false;
-        }
-
-        uint8_t major = (module->module_api_version >> 8) & 0xff;
-        if (major > 1) {
-            ALOGE("unknown gralloc module major version %d", major);
-            return false;
-        }
-
-        if (major == 1) {
-            err = gralloc1_open(module, &mDevice);
-            if (err) {
-                ALOGE("failed to open gralloc1 device");
-                return false;
-            }
-
-            mRetain = reinterpret_cast<GRALLOC1_PFN_RETAIN>(
-                    mDevice->getFunction(mDevice, GRALLOC1_FUNCTION_RETAIN));
-            mRelease = reinterpret_cast<GRALLOC1_PFN_RELEASE>(
-                    mDevice->getFunction(mDevice, GRALLOC1_FUNCTION_RELEASE));
-            if (!mRetain || !mRelease) {
-                ALOGE("invalid gralloc1 device");
-                gralloc1_close(mDevice);
-                return false;
-            }
-        } else {
-            mModule = reinterpret_cast<const gralloc_module_t*>(module);
-        }
-
-        return true;
-    }
-
-    void closeGralloc()
-    {
-        if (mDevice) {
-            gralloc1_close(mDevice);
-        }
-    }
-
-    buffer_handle_t cloneBuffer(buffer_handle_t handle)
-    {
-        native_handle_t* clone = native_handle_clone(handle);
-        if (!clone) {
-            ALOGE("failed to clone buffer %p", handle);
-            return nullptr;
-        }
-
-        bool err;
-        if (mDevice) {
-            err = (mRetain(mDevice, clone) != GRALLOC1_ERROR_NONE);
-        } else {
-            err = (mModule->registerBuffer(mModule, clone) != 0);
-        }
-
-        if (err) {
-            ALOGE("failed to retain/register buffer %p", clone);
-            native_handle_close(clone);
-            native_handle_delete(clone);
-            return nullptr;
-        }
-
-        return clone;
-    }
-
-    void releaseBuffer(buffer_handle_t handle)
-    {
-        if (mDevice) {
-            mRelease(mDevice, handle);
-        } else {
-            mModule->unregisterBuffer(mModule, handle);
-        }
-        native_handle_close(handle);
-        native_handle_delete(const_cast<native_handle_t*>(handle));
-    }
-
-    // gralloc1
-    gralloc1_device_t* mDevice;
-    GRALLOC1_PFN_RETAIN mRetain;
-    GRALLOC1_PFN_RELEASE mRelease;
-
-    // gralloc0
-    const gralloc_module_t* mModule;
-};
-
-HandleImporter sHandleImporter;
-
-} // Anonymous namespace
+HandleImporter& CameraDeviceSession::sHandleImporter = HandleImporter::getInstance();
 
 CameraDeviceSession::CameraDeviceSession(
     camera3_device_t* device, const sp<ICameraDeviceCallback>& callback) :
         camera3_callback_ops({&sProcessCaptureResult, &sNotify}),
         mDevice(device),
         mCallback(callback) {
-    // For now, we init sHandleImporter but do not cleanup (keep it alive until
-    // HAL process ends)
-    sHandleImporter.initialize();
-
     mInitFail = initialize();
 }
 
diff --git a/camera/device/3.2/default/CameraDeviceSession.h b/camera/device/3.2/default/CameraDeviceSession.h
index f8689d3..3786e4b 100644
--- a/camera/device/3.2/default/CameraDeviceSession.h
+++ b/camera/device/3.2/default/CameraDeviceSession.h
@@ -26,6 +26,7 @@
 #include <hidl/Status.h>
 #include <hidl/MQDescriptor.h>
 #include <include/convert.h>
+#include "HandleImporter.h"
 
 namespace android {
 namespace hardware {
@@ -39,6 +40,7 @@
 using ::android::hardware::camera::device::V3_2::StreamConfiguration;
 using ::android::hardware::camera::device::V3_2::ICameraDeviceSession;
 using ::android::hardware::camera::common::V1_0::Status;
+using ::android::hardware::camera::common::V1_0::helper::HandleImporter;
 using ::android::hardware::Return;
 using ::android::hardware::Void;
 using ::android::hardware::hidl_vec;
@@ -109,6 +111,8 @@
     // Stream ID -> circulating buffers map
     std::map<int, CirculatingBuffers> mCirculatingBuffers;
 
+    static HandleImporter& sHandleImporter;
+
     bool mInitFail;
     bool initialize();
 
diff --git a/camera/device/3.2/default/CameraDevice.h b/camera/device/3.2/default/CameraDevice_3_2.h
similarity index 97%
rename from camera/device/3.2/default/CameraDevice.h
rename to camera/device/3.2/default/CameraDevice_3_2.h
index 317eea5..4e86067 100644
--- a/camera/device/3.2/default/CameraDevice.h
+++ b/camera/device/3.2/default/CameraDevice_3_2.h
@@ -55,7 +55,7 @@
     // Called by provider HAL. Provider HAL must ensure the uniqueness of
     // CameraDevice object per cameraId, or there could be multiple CameraDevice
     // trying to access the same physical camera.
-    // Also, provider will have to keep track of all CameraDevice object in
+    // Also, provider will have to keep track of all CameraDevice objects in
     // order to notify CameraDevice when the underlying camera is detached
     CameraDevice(sp<CameraModule> module,
                  const std::string& cameraId,
@@ -81,8 +81,7 @@
     /* End of Methods from ::android::hardware::camera::device::V3_2::ICameraDevice */
 
 private:
-    // Passed from provider HAL. Should not change.
-    sp<CameraModule> mModule;
+    const sp<CameraModule> mModule;
     const std::string mCameraId;
     // const after ctor
     int   mCameraIdInt;