GitLab

Aim: Remove the QR Scanner Specific methods out of the camera controller so that a similar subclass of the generic camera controller super class can be implemented for the credit card scanner.

Architecture:
Superclass - cameraController
Subclasses - qrScannerCameraController

Methods shifted:

1. - (void)continueLoadCaptureSession:(AVCaptureVideoPreviewLayer*)previewLayer;
Modifies the method to move the section that configures the QR scanner metadata output to a separate method 'configureScannerWithSession', implemented in the QR Scanner Camera Controller.

2. - (void)captureOutput:(AVCaptureOutput*)captureOutput
    didOutputMetadataObjects:(NSArray*)metadataObjects
              fromConnection:(AVCaptureConnection*)connection;
Moves this method to the QR Scanner Camera Controller. It reads and processes the scanned QR code data.

Bug: 990744

Change-Id: If07340c62b0c5c11c70a1e6c4d0a6782dd2c774e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1754008
Commit-Queue: Tanisha Mandre <tanishamandre@google.com>
Reviewed-by: Javier Ernesto Flores Robles <javierrobles@chromium.org>
Reviewed-by: Rohit Rao <rohitrao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#688503}