Fix test failure from http://crrev.com/c/1872409 landed

Update the test expectations and re-enable the tests.

Bug: 1021499
Change-Id: I84eed7b0fac47ff069ee81c23e1e494a05337da3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1899926Reviewed-by: Martin Robinson <mrobinson@igalia.com>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#712865}

chrome/browser/pdf/pdf_extension_test.cc

@@ -2592,13 +2592,7 @@ IN_PROC_BROWSER_TEST_P(PDFExtensionAccessibilityTreeDumpTest,
   RunPDFTest(FILE_PATH_LITERAL("paragraphs-and-heading-untagged.pdf"));
 }
 
-// crbug.com/1021499
-#if defined(OS_LINUX)
-#define MAYBE_MultiPage DISABLED_MultiPage
-#else
-#define MAYBE_MultiPage MultiPage
-#endif
-IN_PROC_BROWSER_TEST_P(PDFExtensionAccessibilityTreeDumpTest, MAYBE_MultiPage) {
+IN_PROC_BROWSER_TEST_P(PDFExtensionAccessibilityTreeDumpTest, MultiPage) {
   RunPDFTest(FILE_PATH_LITERAL("multi-page.pdf"));
 }
 
@@ -2629,12 +2623,6 @@ IN_PROC_BROWSER_TEST_P(PDFExtensionAccessibilityTreeDumpTest,
   RunPDFTest(FILE_PATH_LITERAL("text-run-style-heuristic.pdf"));
 }
 
-// crbug.com/1021499
-#if defined(OS_LINUX)
-#define MAYBE_TextStyle DISABLED_TextStyle
-#else
-#define MAYBE_TextStyle TextStyle
-#endif
-IN_PROC_BROWSER_TEST_P(PDFExtensionAccessibilityTreeDumpTest, MAYBE_TextStyle) {
+IN_PROC_BROWSER_TEST_P(PDFExtensionAccessibilityTreeDumpTest, TextStyle) {
   RunPDFTest(FILE_PATH_LITERAL("text-style.pdf"));
 }

chrome/test/data/pdf/accessibility/text-style-expected-auralinux.txt

@@ -2,10 +2,10 @@
 ++[document frame]
 ++++[landmark] name='Page 1'
 ++++++[paragraph]
-++++++++[text] name='Case 1<newline>'
+++++++++[static] name='Case 1<newline>'
 ++++++[paragraph]
-++++++++[text] name='Case 2<newline>'
+++++++++[static] name='Case 2<newline>'
 ++++++[paragraph]
-++++++++[text] name='Case 3<newline>'
+++++++++[static] name='Case 3<newline>'
 ++++++[paragraph]
-++++++++[text] name='Case 4'
\ No newline at end of file
+++++++++[static] name='Case 4'