Roll src/third_party/pdfium/ 47a0b779b..ab1a89811 (2 commits)

https://pdfium.googlesource.com/pdfium.git/+log/47a0b779b3d4..ab1a89811c39

2025-04-03 tsepez@chromium.org Convert to google-name_ style in fpdfxfa/
2025-04-03 thestig@chromium.org Let FPDFPageObj_SetMatrix() reset dirty bit if restoring image matrix

Created with:
  roll-dep src/third_party/pdfium

Then update a failing test case with the proper expectations.

Bug: 42271580, 405433817, 406540676, 407950121
Change-Id: If41e0d0ddf83874c806ed6068952aafed0c3365d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6432274
Commit-Queue: Alan Screen <awscreen@chromium.org>
Reviewed-by: Alan Screen <awscreen@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1442595}

DEPS

@@ -320,7 +320,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling PDFium
   # and whatever else without interference from each other.
-  'pdfium_revision': '47a0b779b3d4b6e966adaf6db744b30636a56ddf',
+  'pdfium_revision': 'ab1a89811c39a99d2b6181d4aeb8fede91e573a0',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.

pdf/pdfium/pdfium_on_demand_searchifier_unittest.cc

@@ -647,8 +647,7 @@ TEST_P(PDFiumOnDemandSearchifierTest, UpdateWithUnloadedPage) {
   EXPECT_TRUE(future.Wait());
   EXPECT_EQ(performed_ocrs(), 1);
 
-  // TODO(crbug.com/c/407950121): Page one should have one image.
-  EXPECT_EQ(page1.GetImageObjectIndices().size(), 0u);
+  EXPECT_EQ(page1.GetImageObjectIndices().size(), 1u);
 }
 
 INSTANTIATE_TEST_SUITE_P(All, PDFiumOnDemandSearchifierTest, testing::Bool());