Merge branch 'leipert-move-pdf-js' into 'master'

Move to pdf.js distributed with npm

See merge request gitlab-org/gitlab-ce!28156

app/assets/javascripts/pdf/index.vue

 <script>
-import pdfjsLib from 'vendor/pdf';
-import workerSrc from 'vendor/pdf.worker.min';
+import pdfjsLib from 'pdfjs-dist/build/pdf';
+import workerSrc from 'pdfjs-dist/build/pdf.worker.min';
 
 import page from './page/index.vue';
 

package.json

@@ -97,6 +97,7 @@
     "monaco-editor": "^0.15.6",
     "monaco-editor-webpack-plugin": "^1.7.0",
     "mousetrap": "^1.4.6",
+    "pdfjs-dist": "^2.0.943",
     "pikaday": "^1.6.1",
     "popper.js": "^1.14.7",
     "prismjs": "^1.6.0",

spec/javascripts/pdf/index_spec.js

 import Vue from 'vue';
-import { GlobalWorkerOptions } from 'vendor/pdf';
-import workerSrc from 'vendor/pdf.worker.min';
+import { GlobalWorkerOptions } from 'pdfjs-dist/build/pdf';
+import workerSrc from 'pdfjs-dist/build/pdf.worker.min';
 
 import PDFLab from '~/pdf/index.vue';
 import { FIXTURES_PATH } from 'spec/test_constants';

spec/javascripts/pdf/page_spec.js

 import Vue from 'vue';
-import pdfjsLib from 'vendor/pdf';
-import workerSrc from 'vendor/pdf.worker.min';
+import pdfjsLib from 'pdfjs-dist/build/pdf';
+import workerSrc from 'pdfjs-dist/build/pdf.worker.min';
 
 import PageComponent from '~/pdf/page/index.vue';
 import mountComponent from 'spec/helpers/vue_mount_component_helper';

yarn.lock

@@ -7531,6 +7531,11 @@ nice-try@^1.0.4:
   resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.4.tgz#d93962f6c52f2c1558c0fbda6d512819f1efe1c4"
   integrity sha512-2NpiFHqC87y/zFke0fC0spBXL3bBsoh/p5H1EFhshxjCR5+0g2d6BiXbUFz9v1sAcxsk2htp2eQnNIci2dIYcA==
 
+node-ensure@^0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/node-ensure/-/node-ensure-0.0.0.tgz#ecae764150de99861ec5c810fd5d096b183932a7"
+  integrity sha1-7K52QVDemYYexcgQ/V0Jaxg5Mqc=
+
 node-fetch@1.6.3:
   version "1.6.3"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.6.3.tgz#dc234edd6489982d58e8f0db4f695029abcd8c04"
@@ -8278,6 +8283,14 @@ pbkdf2@^3.0.3:
     safe-buffer "^5.0.1"
     sha.js "^2.4.8"
 
+pdfjs-dist@^2.0.943:
+  version "2.0.943"
+  resolved "https://registry.yarnpkg.com/pdfjs-dist/-/pdfjs-dist-2.0.943.tgz#32fb9a2d863df5a1d89521a0b3cd900c16e7edde"
+  integrity sha512-iLhNcm4XceTHRaSU5o22ZGCm4YpuW5+rf4+BJFH/feBhMQLbCGBry+Jet8Q419QDI4qgARaIQzXuiNrsNWS8Yw==
+  dependencies:
+    node-ensure "^0.0.0"
+    worker-loader "^2.0.0"
+
 performance-now@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-2.1.0.tgz#6309f4e0e5fa913ec1c69307ae364b4b377c9e7b"