[WIP] Mojo native bindings interface.

third_party/WebKit/LayoutTests/shapedetection/resources/mock-textdetection.js

Index: third_party/WebKit/LayoutTests/shapedetection/resources/mock-textdetection.js
diff --git a/third_party/WebKit/LayoutTests/shapedetection/resources/mock-textdetection.js b/third_party/WebKit/LayoutTests/shapedetection/resources/mock-textdetection.js
index 08195c993242b69e0061be7e34b6f1644f426c9d..333ea10abf6fb85800f7b674f7f777342b09dd42 100644
--- a/third_party/WebKit/LayoutTests/shapedetection/resources/mock-textdetection.js
+++ b/third_party/WebKit/LayoutTests/shapedetection/resources/mock-textdetection.js
@@ -4,9 +4,8 @@ let mockTextDetectionReady = define(
   'mockTextDetection',
   ['services/shape_detection/public/interfaces/textdetection.mojom',
    'mojo/public/js/bindings',
-   'mojo/public/js/core',
    'content/public/renderer/interfaces',
-  ], (textDetection, bindings, mojo, interfaces) => {
+  ], (textDetection, bindings, interfaces) => {
 
   class MockTextDetection {
     constructor() {
@@ -18,7 +17,7 @@ let mockTextDetectionReady = define(
     }
 
     detect(frame_data, width, height) {
-      let receivedStruct = mojo.mapBuffer(frame_data, 0, width*height*4, 0);
+      let receivedStruct = frame_data.mapBuffer(0, width*height*4);
       this.buffer_data_ = new Uint32Array(receivedStruct.buffer);
       return Promise.resolve({
         results: [
@@ -32,7 +31,6 @@ let mockTextDetectionReady = define(
           },
         ],
       });
-      mojo.unmapBuffer(receivedStruct.buffer);
     }
 
     getFrameData() {