[xfa] Remove form checksum abilities

This CL removes the code for verifying and creating checksums associated
with form elements in XFA documents. This was the only code requiring
the SAXReader which has also been removed.

According to the XFA spec and application can decide which parts of the
signatures are supported. This feature is being removed until we
determine if/when it is needed.

Bug: pdfium:1063
Change-Id: Iec2261282340f8fc72a1225d2e0d3e6ddf05edcb
Reviewed-on: https://pdfium-review.googlesource.com/30150
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

1 files changed, 0 insertions, 152 deletions

diff --git a/core/fxcrt/xml/cfx_saxreader_unittest.cpp b/core/fxcrt/xml/cfx_saxreader_unittest.cpp
deleted file mode 100644
index 13d06325a7..0000000000
--- a/core/fxcrt/xml/cfx_saxreader_unittest.cpp
+++ /dev/null
@@ -1,152 +0,0 @@
-// Copyright 2017 The PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "core/fxcrt/xml/cfx_saxreader.h"
-#include "core/fxcrt/cfx_memorystream.h"
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "testing/test_support.h"
-
-using testing::_;
-using testing::Eq;
-using testing::Return;
-
-namespace {
-
-class MockHandler : public CFX_SAXReader::HandlerIface {
- public:
-  MOCK_METHOD3(OnTagEnter,
-               CFX_SAXContext*(const ByteStringView& bsTagName,
-                               CFX_SAXItem::Type eType,
-                               uint32_t dwStartPos));
-  MOCK_METHOD3(OnTagAttribute,
-               void(CFX_SAXContext* pTag,
-                    const ByteStringView& bsAttri,
-                    const ByteStringView& bsValue));
-  MOCK_METHOD1(OnTagBreak, void(CFX_SAXContext* pTag));
-  MOCK_METHOD4(OnTagData,
-               void(CFX_SAXContext* pTag,
-                    CFX_SAXItem::Type eType,
-                    const ByteStringView& bsData,
-                    uint32_t dwStartPos));
-  MOCK_METHOD2(OnTagClose, void(CFX_SAXContext* pTag, uint32_t dwEndPos));
-  MOCK_METHOD3(OnTagEnd,
-               void(CFX_SAXContext* pTag,
-                    const ByteStringView& bsTagName,
-                    uint32_t dwEndPos));
-  MOCK_METHOD4(OnTargetData,
-               void(CFX_SAXContext* pTag,
-                    CFX_SAXItem::Type eType,
-                    const ByteStringView& bsData,
-                    uint32_t dwStartPos));
-};
-
-}  // namespace
-
-class CFX_SAXReaderTest : public testing::Test {
- public:
-  void SetHandler(CFX_SAXReader::HandlerIface* handler) {
-    reader_.SetHandler(handler);
-  }
-
-  bool StartParse(char* str) {
-    return reader_.StartParse(
-               pdfium::MakeRetain<CFX_MemoryStream>(
-                   reinterpret_cast<uint8_t*>(str), strlen(str), false),
-               0, static_cast<uint32_t>(-1),
-               CFX_SaxParseMode_NotSkipSpace) >= 0;
-  }
-
-  int32_t ContinueParse() {
-    int32_t ret;
-    do {
-      ret = reader_.ContinueParse();
-    } while (ret >= 0 && ret < 100);
-    return ret;
-  }
-
- private:
-  CFX_SAXReader reader_;
-};
-
-TEST_F(CFX_SAXReaderTest, Null) {
-  char data[] = "";
-  ASSERT_FALSE(StartParse(data));
-}
-
-TEST_F(CFX_SAXReaderTest, SimpleText) {
-  MockHandler mock;
-  SetHandler(&mock);
-
-  char data[] = "clams";
-  ASSERT_TRUE(StartParse(data));
-  EXPECT_EQ(100, ContinueParse());
-}
-
-TEST_F(CFX_SAXReaderTest, SimpleTag) {
-  MockHandler mock;
-  EXPECT_CALL(mock, OnTagEnter(Eq("clams"), _, _));
-  EXPECT_CALL(mock, OnTagBreak(_));
-  SetHandler(&mock);
-
-  char data[] = "<clams>";
-  ASSERT_TRUE(StartParse(data));
-  EXPECT_EQ(100, ContinueParse());
-}
-
-TEST_F(CFX_SAXReaderTest, AttributeTag) {
-  MockHandler mock;
-  EXPECT_CALL(mock, OnTagEnter(Eq("clams"), _, _));
-  EXPECT_CALL(mock, OnTagAttribute(_, Eq("size"), Eq("small")));
-  EXPECT_CALL(mock, OnTagAttribute(_, Eq("color"), Eq("red")));
-  EXPECT_CALL(mock, OnTagBreak(_));
-  SetHandler(&mock);
-
-  char data[] = "<clams size='small' color='red'>";
-  ASSERT_TRUE(StartParse(data));
-  EXPECT_EQ(100, ContinueParse());
-}
-
-TEST_F(CFX_SAXReaderTest, AttributeEntityTag) {
-  MockHandler mock;
-  EXPECT_CALL(mock, OnTagEnter(Eq("clams"), _, _));
-  EXPECT_CALL(mock, OnTagAttribute(_, Eq("predicate"), Eq("1 < 2")));
-  EXPECT_CALL(mock, OnTagBreak(_));
-  SetHandler(&mock);
-
-  char data[] = "<clams predicate='1 &lt; 2'>";
-  ASSERT_TRUE(StartParse(data));
-  EXPECT_EQ(100, ContinueParse());
-}
-
-TEST_F(CFX_SAXReaderTest, TextWithinTag) {
-  MockHandler mock;
-  EXPECT_CALL(mock, OnTagEnter(Eq("b"), _, _));
-  EXPECT_CALL(mock, OnTagBreak(_));
-  EXPECT_CALL(mock, OnTagData(_, _, Eq("biff"), _));
-  EXPECT_CALL(mock, OnTagEnd(_, Eq("b"), _));
-  SetHandler(&mock);
-
-  char data[] = "<b>biff</b>";
-  ASSERT_TRUE(StartParse(data));
-  EXPECT_EQ(100, ContinueParse());
-}
-
-TEST_F(CFX_SAXReaderTest, bug_711459) {
-  char data[] =
-      "&a<tag "
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
-      ">x;";
-  ASSERT_TRUE(StartParse(data));
-  EXPECT_EQ(100, ContinueParse());
-}