[WIP] Mojo native bindings interface.

third_party/WebKit/LayoutTests/sensor/resources/sensor-helpers.js

Index: third_party/WebKit/LayoutTests/sensor/resources/sensor-helpers.js
diff --git a/third_party/WebKit/LayoutTests/sensor/resources/sensor-helpers.js b/third_party/WebKit/LayoutTests/sensor/resources/sensor-helpers.js
index 7d3c97e46cd7e60e4251b3b8b544df0de2780c12..64712d47d7e34f607b79453486b614e90677e539 100644
--- a/third_party/WebKit/LayoutTests/sensor/resources/sensor-helpers.js
+++ b/third_party/WebKit/LayoutTests/sensor/resources/sensor-helpers.js
@@ -19,11 +19,10 @@ class CallbackWrapper {
 
 function sensor_mocks(mojo) {
   return define('Generic Sensor API mocks', [
-    'mojo/public/js/core',
     'mojo/public/js/bindings',
     'device/generic_sensor/public/interfaces/sensor_provider.mojom',
     'device/generic_sensor/public/interfaces/sensor.mojom',
-  ], (core, bindings, sensor_provider, sensor) => {
+  ], (bindings, sensor_provider, sensor) => {
 
     // Helper function that returns resolved promise with result.
     function sensorResponse(success) {
@@ -45,9 +44,8 @@ function sensor_mocks(mojo) {
         this.add_configuration_called_ = null;
         this.remove_configuration_called_ = null;
         this.active_sensor_configurations_ = [];
-        let rv = core.mapBuffer(handle, offset, size,
-            core.MAP_BUFFER_FLAG_NONE);
-        assert_equals(rv.result, core.RESULT_OK, "Failed to map shared buffer");
+        let rv = handle.mapBuffer(offset, size);
+        assert_equals(rv.result, Mojo.RESULT_OK, "Failed to map shared buffer");
         this.buffer_array_ = rv.buffer;
         this.buffer_ = new Float64Array(this.buffer_array_);
         this.resetBuffer();
@@ -139,7 +137,6 @@ function sensor_mocks(mojo) {
         this.add_configuration_called_ = null;
         this.remove_configuration_called_ = null;
         this.resetBuffer();
-        core.unmapBuffer(this.buffer_array_);
         this.buffer_array_ = null;
         this.binding_.close();
       }
@@ -238,11 +235,8 @@ function sensor_mocks(mojo) {
             sensor_provider.SensorInitParams.kReadBufferSizeForTests;
         this.shared_buffer_size_in_bytes_ = this.reading_size_in_bytes_ *
                 sensor.SensorType.LAST;
-        let rv =
-                core.createSharedBuffer(
-                        this.shared_buffer_size_in_bytes_,
-                        core.CREATE_SHARED_BUFFER_OPTIONS_FLAG_NONE);
-        assert_equals(rv.result, core.RESULT_OK, "Failed to create buffer");
+        let rv = Mojo.createSharedBuffer(this.shared_buffer_size_in_bytes_);
+        assert_equals(rv.result, Mojo.RESULT_OK, "Failed to create buffer");
         this.shared_buffer_handle_ = rv.handle;
         this.active_sensor_ = null;
         this.get_sensor_should_fail_ = false;
@@ -274,12 +268,8 @@ function sensor_mocks(mojo) {
           this.active_sensor_ = mockSensor;
         }
 
-        let rv =
-                core.duplicateBufferHandle(
-                        this.shared_buffer_handle_,
-                        core.DUPLICATE_BUFFER_HANDLE_OPTIONS_FLAG_NONE);
-
-        assert_equals(rv.result, core.RESULT_OK);
+        let rv = this.shared_buffer_handle_.duplicateBufferHandle();
+        assert_equals(rv.result, Mojo.RESULT_OK);
 
         let default_config = {frequency: 5};