Revert "Fix the issue that pdfium swallows 'fi' or 'ff' in some pdf files"

This reverts commit 9bd18183ba8210c91d71c3060146235750a4c71c.

14 files changed, 0 insertions, 428 deletions

diff --git a/testing/resources/pixel/bug_524043_1.in b/testing/resources/pixel/bug_524043_1.in
deleted file mode 100644
index 61ac6f4bb2..0000000000
--- a/testing/resources/pixel/bug_524043_1.in
+++ /dev/null
@@ -1,61 +0,0 @@
-{{header}}
-{{object 1 0}} <<
-  /Type /Catalog
-  /Pages 2 0 R
->>
-{{object 2 0}} <<
-  /Type /Pages
-  /MediaBox [ 0 0 200 200 ]
-  /Count 1
-  /Kids [ 3 0 R ]
->>
-endobj
-{{object 3 0}} <<
-  /Type /Page
-  /Parent 2 0 R
-  /Resources <<
-    /Font <<
-      /F1 4 0 R
-      /F2 5 0 R
-    >>
-  >>
-  /Contents 6 0 R
->>
-endobj
-{{object 4 0}} <<
-  /Type /Font
-  /Subtype /Type1
-  /BaseFont /Times-Roman
->>
-endobj
-{{object 5 0}} <<
-  /Type /Font
-  /Subtype /Type1
-  /BaseFont /Helvetica
->>
-endobj
-% Case 1:
-%   /Length identifies intended end of stream, despite embedded keywords.
-%   Both should render as text.
-{{object 6 0}} <<
-  /Length 107
->>
-stream
-BT
-20 50 Td
-/F1 12 Tf
-(endobj is text) Tj
-endstream
-0 50 Td
-/F2 13 Tf
-(endstream is text per /Length) Tj
-ET
-endstream
-endobj
-{{xref}}
-trailer <<
-  /Size 6
-  /Root 1 0 R
->>
-{{startxref}}
-%%EOF
diff --git a/testing/resources/pixel/bug_524043_1_expected.pdf.0.png b/testing/resources/pixel/bug_524043_1_expected.pdf.0.png
deleted file mode 100644
index a044bb0c37..0000000000
--- a/testing/resources/pixel/bug_524043_1_expected.pdf.0.png
+++ /dev/null
diff --git a/testing/resources/pixel/bug_524043_2.in b/testing/resources/pixel/bug_524043_2.in
deleted file mode 100644
index 0ee43da106..0000000000
--- a/testing/resources/pixel/bug_524043_2.in
+++ /dev/null
@@ -1,62 +0,0 @@
-{{header}}
-{{object 1 0}} <<
-  /Type /Catalog
-  /Pages 2 0 R
->>
-{{object 2 0}} <<
-  /Type /Pages
-  /MediaBox [ 0 0 200 200 ]
-  /Count 1
-  /Kids [ 3 0 R ]
->>
-endobj
-{{object 3 0}} <<
-  /Type /Page
-  /Parent 2 0 R
-  /Resources <<
-    /Font <<
-      /F1 4 0 R
-      /F2 5 0 R
-    >>
-  >>
-  /Contents 6 0 R
->>
-endobj
-{{object 4 0}} <<
-  /Type /Font
-  /Subtype /Type1
-  /BaseFont /Times-Roman
->>
-endobj
-{{object 5 0}} <<
-  /Type /Font
-  /Subtype /Type1
-  /BaseFont /Helvetica
->>
-endobj
-% Case 2:
-%   /Length incorrectly identifies middle of stream.
-%   The stream is blocked by the keyword "endstream"
-%   Only the text before the keyword can be rendered.
-{{object 6 0}} <<
-  /Length 87
->>
-stream
-BT
-20 50 Td
-/F1 12 Tf
-(endobj is text) Tj
-endstream
-0 50 Td
-/F2 13 Tf
-(It's wrong when you see the text!) Tj
-ET
-endstream
-endobj
-{{xref}}
-trailer <<
-  /Size 6
-  /Root 1 0 R
->>
-{{startxref}}
-%%EOF
diff --git a/testing/resources/pixel/bug_524043_2_expected.pdf.0.png b/testing/resources/pixel/bug_524043_2_expected.pdf.0.png
deleted file mode 100644
index 19de52a360..0000000000
--- a/testing/resources/pixel/bug_524043_2_expected.pdf.0.png
+++ /dev/null
diff --git a/testing/resources/pixel/bug_524043_3.in b/testing/resources/pixel/bug_524043_3.in
deleted file mode 100644
index 716345ede1..0000000000
--- a/testing/resources/pixel/bug_524043_3.in
+++ /dev/null
@@ -1,62 +0,0 @@
-{{header}}
-{{object 1 0}} <<
-  /Type /Catalog
-  /Pages 2 0 R
->>
-{{object 2 0}} <<
-  /Type /Pages
-  /MediaBox [ 0 0 200 200 ]
-  /Count 1
-  /Kids [ 3 0 R ]
->>
-endobj
-{{object 3 0}} <<
-  /Type /Page
-  /Parent 2 0 R
-  /Resources <<
-    /Font <<
-      /F1 4 0 R
-      /F2 5 0 R
-    >>
-  >>
-  /Contents 6 0 R
->>
-endobj
-{{object 4 0}} <<
-  /Type /Font
-  /Subtype /Type1
-  /BaseFont /Times-Roman
->>
-endobj
-{{object 5 0}} <<
-  /Type /Font
-  /Subtype /Type1
-  /BaseFont /Helvetica
->>
-endobj
-% Case 3:
-%   /Length incorrectly identifies middle of stream.
-%   "eendstream" shouldn't block the stream.
-%   Both should render as text.
-{{object 6 0}} <<
-  /Length 87
->>
-stream
-BT
-20 50 Td
-/F1 12 Tf
-(endobj is text) Tj
-eendstream
-0 50 Td
-/F2 13 Tf
-(endstream is text per /Length) Tj
-ET
-endstream
-endobj
-{{xref}}
-trailer <<
-  /Size 6
-  /Root 1 0 R
->>
-{{startxref}}
-%%EOF
diff --git a/testing/resources/pixel/bug_524043_3_expected.pdf.0.png b/testing/resources/pixel/bug_524043_3_expected.pdf.0.png
deleted file mode 100644
index a044bb0c37..0000000000
--- a/testing/resources/pixel/bug_524043_3_expected.pdf.0.png
+++ /dev/null
diff --git a/testing/resources/pixel/bug_524043_4.in b/testing/resources/pixel/bug_524043_4.in
deleted file mode 100644
index 6cdb3d18a7..0000000000
--- a/testing/resources/pixel/bug_524043_4.in
+++ /dev/null
@@ -1,61 +0,0 @@
-{{header}}
-{{object 1 0}} <<
-  /Type /Catalog
-  /Pages 2 0 R
->>
-{{object 2 0}} <<
-  /Type /Pages
-  /MediaBox [ 0 0 200 200 ]
-  /Count 1
-  /Kids [ 3 0 R ]
->>
-endobj
-{{object 3 0}} <<
-  /Type /Page
-  /Parent 2 0 R
-  /Resources <<
-    /Font <<
-      /F1 4 0 R
-      /F2 5 0 R
-    >>
-  >>
-  /Contents 6 0 R
->>
-endobj
-{{object 4 0}} <<
-  /Type /Font
-  /Subtype /Type1
-  /BaseFont /Times-Roman
->>
-endobj
-{{object 5 0}} <<
-  /Type /Font
-  /Subtype /Type1
-  /BaseFont /Helvetica
->>
-endobj
-% Case 4:
-%   /Length incorrectly identifies middle of stream.
-%   "endstream." shouldn't block the stream. 
-%   Both should render as text even "endstream" is missing.
-{{object 6 0}} <<
-  /Length 87
->>
-stream
-BT
-20 50 Td
-/F1 12 Tf
-(endobj is text) Tj
-endstream.
-0 50 Td
-/F2 13 Tf
-(endstream is text per /Length) Tj
-ET
-endobj
-{{xref}}
-trailer <<
-  /Size 6
-  /Root 1 0 R
->>
-{{startxref}}
-%%EOF
diff --git a/testing/resources/pixel/bug_524043_4_expected.pdf.0.png b/testing/resources/pixel/bug_524043_4_expected.pdf.0.png
deleted file mode 100644
index a044bb0c37..0000000000
--- a/testing/resources/pixel/bug_524043_4_expected.pdf.0.png
+++ /dev/null
diff --git a/testing/resources/pixel/bug_524043_5.in b/testing/resources/pixel/bug_524043_5.in
deleted file mode 100644
index 799674628d..0000000000
--- a/testing/resources/pixel/bug_524043_5.in
+++ /dev/null
@@ -1,61 +0,0 @@
-{{header}}
-{{object 1 0}} <<
-  /Type /Catalog
-  /Pages 2 0 R
->>
-{{object 2 0}} <<
-  /Type /Pages
-  /MediaBox [ 0 0 200 200 ]
-  /Count 1
-  /Kids [ 3 0 R ]
->>
-endobj
-{{object 3 0}} <<
-  /Type /Page
-  /Parent 2 0 R
-  /Resources <<
-    /Font <<
-      /F1 4 0 R
-      /F2 5 0 R
-    >>
-  >>
-  /Contents 6 0 R
->>
-endobj
-{{object 4 0}} <<
-  /Type /Font
-  /Subtype /Type1
-  /BaseFont /Times-Roman
->>
-endobj
-{{object 5 0}} <<
-  /Type /Font
-  /Subtype /Type1
-  /BaseFont /Helvetica
->>
-endobj
-% Case 5:
-%   /Length incorrectly identifies middle of stream.
-%   "endstream%" shouldn't block the stream. 
-%   Both should render as text even "endobj" is missing.
-{{object 6 0}} <<
-  /Length 87
->>
-stream
-BT
-20 50 Td
-/F1 12 Tf
-(endobj is text) Tj
-endstream%
-0 50 Td
-/F2 13 Tf
-(endstream is text per /Length) Tj
-ET
-endstream
-{{xref}}
-trailer <<
-  /Size 6
-  /Root 1 0 R
->>
-{{startxref}}
-%%EOF
diff --git a/testing/resources/pixel/bug_524043_5_expected.pdf.0.png b/testing/resources/pixel/bug_524043_5_expected.pdf.0.png
deleted file mode 100644
index a044bb0c37..0000000000
--- a/testing/resources/pixel/bug_524043_5_expected.pdf.0.png
+++ /dev/null
diff --git a/testing/resources/pixel/bug_524043_6.in b/testing/resources/pixel/bug_524043_6.in
deleted file mode 100644
index 318b20750d..0000000000
--- a/testing/resources/pixel/bug_524043_6.in
+++ /dev/null
@@ -1,60 +0,0 @@
-{{header}}
-{{object 1 0}} <<
-  /Type /Catalog
-  /Pages 2 0 R
->>
-{{object 2 0}} <<
-  /Type /Pages
-  /MediaBox [ 0 0 200 200 ]
-  /Count 1
-  /Kids [ 3 0 R ]
->>
-endobj
-{{object 3 0}} <<
-  /Type /Page
-  /Parent 2 0 R
-  /Resources <<
-    /Font <<
-      /F1 4 0 R
-      /F2 5 0 R
-    >>
-  >>
-  /Contents 6 0 R
->>
-endobj
-{{object 4 0}} <<
-  /Type /Font
-  /Subtype /Type1
-  /BaseFont /Times-Roman
->>
-endobj
-{{object 5 0}} <<
-  /Type /Font
-  /Subtype /Type1
-  /BaseFont /Helvetica
->>
-endobj
-% Case 6:
-%   /Length incorrectly identifies middle of stream.
-%   "endstream+" shouldn't block the stream. 
-%   Nothing will be rendered when both "endstream" and "endobj" are missing.
-{{object 6 0}} <<
-  /Length 87
->>
-stream
-BT
-20 50 Td
-/F1 12 Tf
-(endobj is text) Tj
-endstream+
-0 50 Td
-/F2 13 Tf
-(endstream is text per /Length) Tj
-ET
-{{xref}}
-trailer <<
-  /Size 6
-  /Root 1 0 R
->>
-{{startxref}}
-%%EOF
diff --git a/testing/resources/pixel/bug_524043_6_expected.pdf.0.png b/testing/resources/pixel/bug_524043_6_expected.pdf.0.png
deleted file mode 100644
index 3edcc2db89..0000000000
--- a/testing/resources/pixel/bug_524043_6_expected.pdf.0.png
+++ /dev/null
diff --git a/testing/resources/pixel/bug_524043_7.in b/testing/resources/pixel/bug_524043_7.in
deleted file mode 100644
index c95f2d94e1..0000000000
--- a/testing/resources/pixel/bug_524043_7.in
+++ /dev/null
@@ -1,61 +0,0 @@
-{{header}}
-{{object 1 0}} <<
-  /Type /Catalog
-  /Pages 2 0 R
->>
-{{object 2 0}} <<
-  /Type /Pages
-  /MediaBox [ 0 0 200 200 ]
-  /Count 1
-  /Kids [ 3 0 R ]
->>
-endobj
-{{object 3 0}} <<
-  /Type /Page
-  /Parent 2 0 R
-  /Resources <<
-    /Font <<
-      /F1 4 0 R
-      /F2 5 0 R
-    >>
-  >>
-  /Contents 6 0 R
->>
-endobj
-{{object 4 0}} <<
-  /Type /Font
-  /Subtype /Type1
-  /BaseFont /Times-Roman
->>
-endobj
-{{object 5 0}} <<
-  /Type /Font
-  /Subtype /Type1
-  /BaseFont /Helvetica
->>
-endobj
-% Case 7:
-%   /Length incorrectly identifies middle of stream.
-%   "endstream" will block the stream. 
-%   The text before the keyword "endstream" can be rendered although
-%   both "endstream" and "endobj" are missing at the end of stream.
-{{object 6 0}} <<
-  /Length 87
->>
-stream
-BT
-20 50 Td
-/F1 12 Tf
-(endobj is text) Tj
-endstream
-0 50 Td
-/F2 13 Tf
-(endstream is text per /Length) Tj
-ET
-{{xref}}
-trailer <<
-  /Size 6
-  /Root 1 0 R
->>
-{{startxref}}
-%%EOF
diff --git a/testing/resources/pixel/bug_524043_7_expected.pdf.0.png b/testing/resources/pixel/bug_524043_7_expected.pdf.0.png
deleted file mode 100644
index 19de52a360..0000000000
--- a/testing/resources/pixel/bug_524043_7_expected.pdf.0.png
+++ /dev/null