Add test case for leak from bug 1265.

Disable for LSAN builds because it leaks.

Bug: pdfium:1265
Change-Id: I7b4afff4a390321b59450b88a078ac12c86960cc
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/54130
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
diff --git a/testing/resources/bug_1265.in b/testing/resources/bug_1265.in
new file mode 100644
index 0000000..dc4d027
--- /dev/null
+++ b/testing/resources/bug_1265.in
@@ -0,0 +1,43 @@
+{{header}}
+{{object 1 0}} <<
+  /Type /Catalog
+  /AcroForm 5 0 R
+  /Pages 2 0 R
+  /NeedsRendering true
+>>
+endobj
+{{object 2 0}} <<
+  /Type /Pages
+  /Count 1
+  /Kids [3 0 R]
+>>
+endobj
+{{object 3 0}} <<
+  /Type /Page
+  /Parent 2 0 R
+  /Contents 6 0 R
+  /MediaBox [0 0 1 1]
+>>
+endobj
+{{object 4 0}} <<
+  {{streamlen}}
+>>
+stream
+<xdp:xdp xmlns:xdp="http://ns.adobe.com/xdp/">
+  <template><subform><overflow trailer="$"/><occur/><exclGroup h="757pt">
+endstream
+endobj
+{{object 5 0}} <<
+  /XFA 4 0 R
+>>
+endobj
+{{object 6 0}} <<
+  {{streamlen}}
+>>
+stream
+endstream
+endobj
+{{trailer}}
+{{xref}}
+{{startxref}}
+%%EOF
\ No newline at end of file
diff --git a/testing/resources/bug_1265.pdf b/testing/resources/bug_1265.pdf
new file mode 100644
index 0000000..6735061
--- /dev/null
+++ b/testing/resources/bug_1265.pdf
@@ -0,0 +1,56 @@
+%PDF-1.7
+% ò¤ô
+1 0 obj <<
+  /Type /Catalog
+  /AcroForm 5 0 R
+  /Pages 2 0 R
+  /NeedsRendering true
+>>
+endobj
+2 0 obj <<
+  /Type /Pages
+  /Count 1
+  /Kids [3 0 R]
+>>
+endobj
+3 0 obj <<
+  /Type /Page
+  /Parent 2 0 R
+  /Contents 6 0 R
+  /MediaBox [0 0 1 1]
+>>
+endobj
+4 0 obj <<
+  /Length 121
+>>
+stream
+<xdp:xdp xmlns:xdp="http://ns.adobe.com/xdp/">
+  <template><subform><overflow trailer="$"/><occur/><exclGroup h="757pt">
+endstream
+endobj
+5 0 obj <<
+  /XFA 4 0 R
+>>
+endobj
+6 0 obj <<
+  /Length 0
+>>
+stream
+endstream
+endobj
+trailer <<
+  /Root 1 0 R
+  /Size 7
+>>
+xref
+0 7
+0000000000 65535 f 
+0000000015 00000 n 
+0000000109 00000 n 
+0000000172 00000 n 
+0000000263 00000 n 
+0000000436 00000 n 
+0000000470 00000 n 
+startxref
+558
+%%EOF
\ No newline at end of file
diff --git a/xfa/fxfa/layout/cxfa_layoutitem_embeddertest.cpp b/xfa/fxfa/layout/cxfa_layoutitem_embeddertest.cpp
index 6dd7527..89b47b2 100644
--- a/xfa/fxfa/layout/cxfa_layoutitem_embeddertest.cpp
+++ b/xfa/fxfa/layout/cxfa_layoutitem_embeddertest.cpp
@@ -8,12 +8,27 @@
 class CXFALayoutItemEmbedderTest : public EmbedderTest {};
 
 #if defined(MEMORY_TOOL_REPLACES_ALLOCATOR)
+
+// Leaks. See https://crbug.com/pdfium/1265
+#define MAYBE_Bug_1265 DISABLED_Bug_1265
+
 // Leaks. See https:://crbug.com/306123
 #define MAYBE_Bug_306123 DISABLED_Bug_306123
+
 #else
+#define MAYBE_Bug_1265 Bug_1265
 #define MAYBE_Bug_306123 Bug_306123
 #endif
 
+TEST_F(CXFALayoutItemEmbedderTest, MAYBE_Bug_1265) {
+  EXPECT_TRUE(OpenDocument("bug_1265.pdf"));
+  FPDF_PAGE page0 = LoadPage(0);
+  FPDF_PAGE page1 = LoadPage(1);
+  EXPECT_NE(nullptr, page0);
+  EXPECT_EQ(nullptr, page1);
+  UnloadPage(page0);
+}
+
 TEST_F(CXFALayoutItemEmbedderTest, MAYBE_Bug_306123) {
   EXPECT_TRUE(OpenDocument("bug_306123.pdf"));
   FPDF_PAGE page0 = LoadPage(0);