Fix nits in PDF accessibility code.

- Use EXPECT_* instead of ASSERT_* in unit tests.

Change-Id: I52e8d37102e01860ad7ae618501b925e41351c69
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1895269
Commit-Queue: Ankit Kumar 🌪️ <ankk@microsoft.com>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Reviewed-by: Kevin Babbitt <kbabbitt@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#718102}

components/pdf/renderer/pdf_accessibility_tree_unittest.cc

@@ -34,7 +34,7 @@ TEST(PdfAccessibilityTreeUnitTest, TextRunsAndCharsMismatch) {
 
   ppapi::PdfAccessibilityPageObjects page_objects;
 
-  ASSERT_FALSE(PdfAccessibilityTree::IsDataFromPluginValid(text_runs, chars,
+  EXPECT_FALSE(PdfAccessibilityTree::IsDataFromPluginValid(text_runs, chars,
                                                            page_objects));
 }
 
@@ -50,7 +50,7 @@ TEST(PdfAccessibilityTreeUnitTest, TextRunsAndCharsMatch) {
 
   ppapi::PdfAccessibilityPageObjects page_objects;
 
-  ASSERT_TRUE(PdfAccessibilityTree::IsDataFromPluginValid(text_runs, chars,
+  EXPECT_TRUE(PdfAccessibilityTree::IsDataFromPluginValid(text_runs, chars,
                                                           page_objects));
 }
 
@@ -80,7 +80,7 @@ TEST(PdfAccessibilityTreeUnitTest, UnsortedLinkVector) {
     page_objects.links.push_back(std::move(link));
   }
 
-  ASSERT_FALSE(PdfAccessibilityTree::IsDataFromPluginValid(text_runs, chars,
+  EXPECT_FALSE(PdfAccessibilityTree::IsDataFromPluginValid(text_runs, chars,
                                                            page_objects));
 }
 
@@ -101,7 +101,7 @@ TEST(PdfAccessibilityTreeUnitTest, OutOfBoundLink) {
     page_objects.links.push_back(std::move(link));
   }
 
-  ASSERT_FALSE(PdfAccessibilityTree::IsDataFromPluginValid(text_runs, chars,
+  EXPECT_FALSE(PdfAccessibilityTree::IsDataFromPluginValid(text_runs, chars,
                                                            page_objects));
 }
 
@@ -129,7 +129,7 @@ TEST(PdfAccessibilityTreeUnitTest, UnsortedImageVector) {
     page_objects.images.push_back(std::move(image));
   }
 
-  ASSERT_FALSE(PdfAccessibilityTree::IsDataFromPluginValid(text_runs, chars,
+  EXPECT_FALSE(PdfAccessibilityTree::IsDataFromPluginValid(text_runs, chars,
                                                            page_objects));
 }
 
@@ -149,7 +149,7 @@ TEST(PdfAccessibilityTreeUnitTest, OutOfBoundImage) {
     page_objects.images.push_back(std::move(image));
   }
 
-  ASSERT_FALSE(PdfAccessibilityTree::IsDataFromPluginValid(text_runs, chars,
+  EXPECT_FALSE(PdfAccessibilityTree::IsDataFromPluginValid(text_runs, chars,
                                                            page_objects));
 }