Add combo box tests.

These tests pass under normal PDFium bug fail when Skia Paths is
enabled.

Bug: chromium:736695
Change-Id: I7e3e789ae25857060dd45940c313f5383c548d2c
Reviewed-on: https://pdfium-review.googlesource.com/7450
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Cary Clark <caryclark@google.com>

13 files changed, 265 insertions, 0 deletions

diff --git a/testing/resources/pixel/bug_736695_1.in b/testing/resources/pixel/bug_736695_1.in
new file mode 100644
index 0000000000..85a6d74c72
--- /dev/null
+++ b/testing/resources/pixel/bug_736695_1.in
@@ -0,0 +1,60 @@
+{{header}}
+
+{{object 1 0}}
+<<
+  /AcroForm << /Fields [ 9 0 R ] >>
+  /Pages 22 0 R
+  /Type /Catalog
+>>
+endobj
+
+{{object 9 0}}
+<<
+  /F 4
+  /FT /Ch
+  /Ff 393216
+  /Opt [ <feff0053007000610069006e> <feff00530077006500640065006e> ]
+  /P 21 0 R
+  /Rect [ 165.7 315.9 315.7 330.1 ]
+  /Subtype /Widget
+  /T (Country Box)
+  /Type /Annot
+>>
+endobj
+
+{{object 21 0}}
+<<
+  /Annots [ 9 0 R ]
+  /Contents 49 0 R
+  /MediaBox [ 0 0 595 342 ]
+  /Parent 22 0 R
+  /Type /Page
+>>
+endobj
+
+{{object 22 0}}
+<<
+  /Count 1
+  /Kids [ 21 0 R ]
+  /MediaBox [ 0 0 595 842 ]
+  /Type /Pages
+>>
+endobj
+
+{{object 49 0}}
+<< /Length 88 >>
+stream
+0.1 w
+0 0 0 RG
+1 1 1 rg
+q 0 0.1 595.2 841.8 re
+W* n
+163.1 313.1 155.3 19.9 re B*
+Q
+endstream
+endobj
+
+{{xref}}
+trailer<< /Root 1 0 R >>
+{{startxref}}
+%%EOF
diff --git a/testing/resources/pixel/bug_736695_1_expected.pdf.0.png b/testing/resources/pixel/bug_736695_1_expected.pdf.0.png
new file mode 100644
index 0000000000..99d7bd7443
--- /dev/null
+++ b/testing/resources/pixel/bug_736695_1_expected.pdf.0.png
diff --git a/testing/resources/pixel/bug_736695_2.evt b/testing/resources/pixel/bug_736695_2.evt
new file mode 100644
index 0000000000..794dbf29aa
--- /dev/null
+++ b/testing/resources/pixel/bug_736695_2.evt
@@ -0,0 +1,4 @@
+# Open the dropdown to make sure it displays correctly.
+mousemove,312,324
+mousedown,left,312,324
+mouseup,left,312,324
diff --git a/testing/resources/pixel/bug_736695_2.in b/testing/resources/pixel/bug_736695_2.in
new file mode 100644
index 0000000000..85a6d74c72
--- /dev/null
+++ b/testing/resources/pixel/bug_736695_2.in
@@ -0,0 +1,60 @@
+{{header}}
+
+{{object 1 0}}
+<<
+  /AcroForm << /Fields [ 9 0 R ] >>
+  /Pages 22 0 R
+  /Type /Catalog
+>>
+endobj
+
+{{object 9 0}}
+<<
+  /F 4
+  /FT /Ch
+  /Ff 393216
+  /Opt [ <feff0053007000610069006e> <feff00530077006500640065006e> ]
+  /P 21 0 R
+  /Rect [ 165.7 315.9 315.7 330.1 ]
+  /Subtype /Widget
+  /T (Country Box)
+  /Type /Annot
+>>
+endobj
+
+{{object 21 0}}
+<<
+  /Annots [ 9 0 R ]
+  /Contents 49 0 R
+  /MediaBox [ 0 0 595 342 ]
+  /Parent 22 0 R
+  /Type /Page
+>>
+endobj
+
+{{object 22 0}}
+<<
+  /Count 1
+  /Kids [ 21 0 R ]
+  /MediaBox [ 0 0 595 842 ]
+  /Type /Pages
+>>
+endobj
+
+{{object 49 0}}
+<< /Length 88 >>
+stream
+0.1 w
+0 0 0 RG
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+q 0 0.1 595.2 841.8 re
+W* n
+163.1 313.1 155.3 19.9 re B*
+Q
+endstream
+endobj
+
+{{xref}}
+trailer<< /Root 1 0 R >>
+{{startxref}}
+%%EOF
diff --git a/testing/resources/pixel/bug_736695_2_expected.pdf.0.png b/testing/resources/pixel/bug_736695_2_expected.pdf.0.png
new file mode 100644
index 0000000000..b89ef8f001
--- /dev/null
+++ b/testing/resources/pixel/bug_736695_2_expected.pdf.0.png
diff --git a/testing/resources/pixel/bug_736695_2_expected_mac.pdf.0.png b/testing/resources/pixel/bug_736695_2_expected_mac.pdf.0.png
new file mode 100644
index 0000000000..46c70854d4
--- /dev/null
+++ b/testing/resources/pixel/bug_736695_2_expected_mac.pdf.0.png
diff --git a/testing/resources/pixel/bug_736695_3.evt b/testing/resources/pixel/bug_736695_3.evt
new file mode 100644
index 0000000000..d64d591022
--- /dev/null
+++ b/testing/resources/pixel/bug_736695_3.evt
@@ -0,0 +1,9 @@
+# Open dropdown
+mousemove,312,324
+mousedown,left,312,324
+mouseup,left,312,324
+
+# Select item
+mousemove,312,310
+mousedown,left,312,310
+mouseup,left,312,310
diff --git a/testing/resources/pixel/bug_736695_3.in b/testing/resources/pixel/bug_736695_3.in
new file mode 100644
index 0000000000..85a6d74c72
--- /dev/null
+++ b/testing/resources/pixel/bug_736695_3.in
@@ -0,0 +1,60 @@
+{{header}}
+
+{{object 1 0}}
+<<
+  /AcroForm << /Fields [ 9 0 R ] >>
+  /Pages 22 0 R
+  /Type /Catalog
+>>
+endobj
+
+{{object 9 0}}
+<<
+  /F 4
+  /FT /Ch
+  /Ff 393216
+  /Opt [ <feff0053007000610069006e> <feff00530077006500640065006e> ]
+  /P 21 0 R
+  /Rect [ 165.7 315.9 315.7 330.1 ]
+  /Subtype /Widget
+  /T (Country Box)
+  /Type /Annot
+>>
+endobj
+
+{{object 21 0}}
+<<
+  /Annots [ 9 0 R ]
+  /Contents 49 0 R
+  /MediaBox [ 0 0 595 342 ]
+  /Parent 22 0 R
+  /Type /Page
+>>
+endobj
+
+{{object 22 0}}
+<<
+  /Count 1
+  /Kids [ 21 0 R ]
+  /MediaBox [ 0 0 595 842 ]
+  /Type /Pages
+>>
+endobj
+
+{{object 49 0}}
+<< /Length 88 >>
+stream
+0.1 w
+0 0 0 RG
+1 1 1 rg
+q 0 0.1 595.2 841.8 re
+W* n
+163.1 313.1 155.3 19.9 re B*
+Q
+endstream
+endobj
+
+{{xref}}
+trailer<< /Root 1 0 R >>
+{{startxref}}
+%%EOF
diff --git a/testing/resources/pixel/bug_736695_3_expected.pdf.0.png b/testing/resources/pixel/bug_736695_3_expected.pdf.0.png
new file mode 100644
index 0000000000..722a74e05c
--- /dev/null
+++ b/testing/resources/pixel/bug_736695_3_expected.pdf.0.png
diff --git a/testing/resources/pixel/bug_736695_3_expected_mac.pdf.0.png b/testing/resources/pixel/bug_736695_3_expected_mac.pdf.0.png
new file mode 100644
index 0000000000..1abcd184f2
--- /dev/null
+++ b/testing/resources/pixel/bug_736695_3_expected_mac.pdf.0.png
diff --git a/testing/resources/pixel/bug_736695_4.evt b/testing/resources/pixel/bug_736695_4.evt
new file mode 100644
index 0000000000..af591cb373
--- /dev/null
+++ b/testing/resources/pixel/bug_736695_4.evt
@@ -0,0 +1,12 @@
+# Open dropdown
+mousemove,312,324
+mousedown,left,312,324
+mouseup,left,312,324
+
+# Hover item
+mousemove,312,310
+
+# Select off
+mousemove,6,6
+mousedown,left,6,6
+mouseup,left,6,6
diff --git a/testing/resources/pixel/bug_736695_4.in b/testing/resources/pixel/bug_736695_4.in
new file mode 100644
index 0000000000..85a6d74c72
--- /dev/null
+++ b/testing/resources/pixel/bug_736695_4.in
@@ -0,0 +1,60 @@
+{{header}}
+
+{{object 1 0}}
+<<
+  /AcroForm << /Fields [ 9 0 R ] >>
+  /Pages 22 0 R
+  /Type /Catalog
+>>
+endobj
+
+{{object 9 0}}
+<<
+  /F 4
+  /FT /Ch
+  /Ff 393216
+  /Opt [ <feff0053007000610069006e> <feff00530077006500640065006e> ]
+  /P 21 0 R
+  /Rect [ 165.7 315.9 315.7 330.1 ]
+  /Subtype /Widget
+  /T (Country Box)
+  /Type /Annot
+>>
+endobj
+
+{{object 21 0}}
+<<
+  /Annots [ 9 0 R ]
+  /Contents 49 0 R
+  /MediaBox [ 0 0 595 342 ]
+  /Parent 22 0 R
+  /Type /Page
+>>
+endobj
+
+{{object 22 0}}
+<<
+  /Count 1
+  /Kids [ 21 0 R ]
+  /MediaBox [ 0 0 595 842 ]
+  /Type /Pages
+>>
+endobj
+
+{{object 49 0}}
+<< /Length 88 >>
+stream
+0.1 w
+0 0 0 RG
+1 1 1 rg
+q 0 0.1 595.2 841.8 re
+W* n
+163.1 313.1 155.3 19.9 re B*
+Q
+endstream
+endobj
+
+{{xref}}
+trailer<< /Root 1 0 R >>
+{{startxref}}
+%%EOF
diff --git a/testing/resources/pixel/bug_736695_4_expected.pdf.0.png b/testing/resources/pixel/bug_736695_4_expected.pdf.0.png
new file mode 100644
index 0000000000..99d7bd7443
--- /dev/null
+++ b/testing/resources/pixel/bug_736695_4_expected.pdf.0.png