Add PdfToEmfConverterBrowserTest for line caps/joins.

Add end-to-end tests to make sure printing PDFs with line caps and line
joins to PostScript printers on Windows works correctly.

Bug: 1049410
Change-Id: I92e2b22f49ad7e70660d34252b8224031ef03583
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2044996Reviewed-by: Daniel Hosseinian <dhoss@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#741228}

chrome/browser/printing/pdf_to_emf_converter_browsertest.cc

@@ -361,4 +361,24 @@ IN_PROC_BROWSER_TEST_F(PdfToEmfConverterBrowserTest,
                                             "bug_806746.emf");
 }
 
+IN_PROC_BROWSER_TEST_F(PdfToEmfConverterBrowserTest,
+                       PostScriptLevel2WithLineCapLineJoin) {
+  const PdfRenderSettings pdf_settings(
+      kLetter200DpiRect, gfx::Point(0, 0), k200DpiSize,
+      /*autorotate=*/false, /*use_color=*/true,
+      PdfRenderSettings::Mode::POSTSCRIPT_LEVEL2);
+  RunSinglePagePdfToPostScriptConverterTest(pdf_settings, "bug_1030689.pdf",
+                                            "bug_1030689.emf");
+}
+
+IN_PROC_BROWSER_TEST_F(PdfToEmfConverterBrowserTest,
+                       PostScriptLevel3WithLineCapLineJoin) {
+  const PdfRenderSettings pdf_settings(
+      kLetter200DpiRect, gfx::Point(0, 0), k200DpiSize,
+      /*autorotate=*/false, /*use_color=*/true,
+      PdfRenderSettings::Mode::POSTSCRIPT_LEVEL3);
+  RunSinglePagePdfToPostScriptConverterTest(pdf_settings, "bug_1030689.pdf",
+                                            "bug_1030689.emf");
+}
+
 }  // namespace printing