Use a pdfium-specific unittest main rather than gtest's

We must initialize our partition allocator before calling into
any test cases.

We can then remove the FPDF_Test class, which did the same thing.

Change-Id: I614480fa474b2032052857a02e94781f15a27a4e
Reviewed-on: https://pdfium-review.googlesource.com/4473
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
diff --git a/xfa/fde/cfde_txtedtbuf_unittest.cpp b/xfa/fde/cfde_txtedtbuf_unittest.cpp
index aa80a66..539ce24 100644
--- a/xfa/fde/cfde_txtedtbuf_unittest.cpp
+++ b/xfa/fde/cfde_txtedtbuf_unittest.cpp
@@ -8,10 +8,9 @@
 #include "testing/test_support.h"
 #include "third_party/base/ptr_util.h"
 
-class CFDE_TxtEdtBufTest : public pdfium::FPDF_Test {
+class CFDE_TxtEdtBufTest : public testing::Test {
  public:
   void SetUp() override {
-    FPDF_Test::SetUp();
     buf_ = pdfium::MakeUnique<CFDE_TxtEdtBuf>();
     buf_->SetChunkSizeForTesting(5);
   }
diff --git a/xfa/fde/css/cfde_cssdeclaration_unittest.cpp b/xfa/fde/css/cfde_cssdeclaration_unittest.cpp
index 80cd72c..f43f941 100644
--- a/xfa/fde/css/cfde_cssdeclaration_unittest.cpp
+++ b/xfa/fde/css/cfde_cssdeclaration_unittest.cpp
@@ -7,9 +7,7 @@
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/test_support.h"
 
-class CFDE_CSSDecalrationTest : public pdfium::FPDF_Test {};
-
-TEST_F(CFDE_CSSDecalrationTest, HexEncodingParsing) {
+TEST(CFDE_CSSDecalrationTest, HexEncodingParsing) {
   FX_ARGB color;
 
   // Length value invalid.
@@ -45,7 +43,7 @@
   EXPECT_EQ(60, FXARGB_B(color));
 }
 
-TEST_F(CFDE_CSSDecalrationTest, RGBEncodingParsing) {
+TEST(CFDE_CSSDecalrationTest, RGBEncodingParsing) {
   FX_ARGB color;
 
   // Invalid input for rgb() syntax.
diff --git a/xfa/fde/css/cfde_cssvaluelistparser_unittest.cpp b/xfa/fde/css/cfde_cssvaluelistparser_unittest.cpp
index 077fb54..53a0657 100644
--- a/xfa/fde/css/cfde_cssvaluelistparser_unittest.cpp
+++ b/xfa/fde/css/cfde_cssvaluelistparser_unittest.cpp
@@ -10,9 +10,7 @@
 #include "testing/test_support.h"
 #include "third_party/base/ptr_util.h"
 
-class CFDE_CSSValueListParserTest : public pdfium::FPDF_Test {};
-
-TEST_F(CFDE_CSSValueListParserTest, rgb_short) {
+TEST(CFDE_CSSValueListParserTest, rgb_short) {
   FDE_CSSPrimitiveType type;
   const wchar_t* start;
   int32_t len;
@@ -43,7 +41,7 @@
   EXPECT_FALSE(parser->NextValue(type, start, len));
 }
 
-TEST_F(CFDE_CSSValueListParserTest, number_parsing) {
+TEST(CFDE_CSSValueListParserTest, number_parsing) {
   FDE_CSSPrimitiveType type;
   const wchar_t* start;
   int32_t len;
@@ -85,7 +83,7 @@
   EXPECT_EQ(L"43a1.12.34", CFX_WideString(start, len));
 }
 
-TEST_F(CFDE_CSSValueListParserTest, string_parsing) {
+TEST(CFDE_CSSValueListParserTest, string_parsing) {
   FDE_CSSPrimitiveType type;
   const wchar_t* start;
   int32_t len;
@@ -108,7 +106,7 @@
   EXPECT_EQ(L"standalone", CFX_WideString(start, len));
 }
 
-TEST_F(CFDE_CSSValueListParserTest, multiparsing) {
+TEST(CFDE_CSSValueListParserTest, multiparsing) {
   FDE_CSSPrimitiveType type;
   const wchar_t* start;
   int32_t len;
diff --git a/xfa/fxfa/cxfa_ffapp_unittest.cpp b/xfa/fxfa/cxfa_ffapp_unittest.cpp
index fc1d038..bd35956 100644
--- a/xfa/fxfa/cxfa_ffapp_unittest.cpp
+++ b/xfa/fxfa/cxfa_ffapp_unittest.cpp
@@ -15,9 +15,7 @@
 #include "third_party/base/ptr_util.h"
 #include "xfa/fxfa/cxfa_fileread.h"
 
-class CXFAFileReadTest : public pdfium::FPDF_Test {};
-
-TEST_F(CXFAFileReadTest, NoStreams) {
+TEST(CXFAFileReadTest, NoStreams) {
   std::vector<CPDF_Stream*> streams;
   auto fileread = pdfium::MakeRetain<CXFA_FileRead>(streams);
 
@@ -27,7 +25,7 @@
   EXPECT_EQ(0xbd, output_buffer[0]);
 }
 
-TEST_F(CXFAFileReadTest, EmptyStreams) {
+TEST(CXFAFileReadTest, EmptyStreams) {
   std::vector<CPDF_Stream*> streams;
   auto stream1 = pdfium::MakeUnique<CPDF_Stream>();
   streams.push_back(stream1.get());
@@ -39,7 +37,7 @@
   EXPECT_EQ(0xbd, output_buffer[0]);
 }
 
-TEST_F(CXFAFileReadTest, NormalStreams) {
+TEST(CXFAFileReadTest, NormalStreams) {
   std::vector<CPDF_Stream*> streams;
   auto stream1 = pdfium::MakeUnique<CPDF_Stream>();
   auto stream2 = pdfium::MakeUnique<CPDF_Stream>();
diff --git a/xfa/fxfa/fm2js/xfa_simpleexpression_unittest.cpp b/xfa/fxfa/fm2js/xfa_simpleexpression_unittest.cpp
index a2c7f1b..160c4a1 100644
--- a/xfa/fxfa/fm2js/xfa_simpleexpression_unittest.cpp
+++ b/xfa/fxfa/fm2js/xfa_simpleexpression_unittest.cpp
@@ -12,9 +12,7 @@
 #include "third_party/base/ptr_util.h"
 #include "xfa/fxfa/fm2js/xfa_lexer.h"
 
-class FMCallExpressionTest : public pdfium::FPDF_Test {};
-
-TEST_F(FMCallExpressionTest, more_than_32_arguments) {
+TEST(FMCallExpressionTest, more_than_32_arguments) {
   // Use sign as it has 3 object parameters at positions 0, 5, and 6.
   auto exp = pdfium::MakeUnique<CXFA_FMIdentifierExpression>(0, L"sign");
 
diff --git a/xfa/fxfa/parser/xfa_utils_unittest.cpp b/xfa/fxfa/parser/xfa_utils_unittest.cpp
index 6a1de85..aa46813 100644
--- a/xfa/fxfa/parser/xfa_utils_unittest.cpp
+++ b/xfa/fxfa/parser/xfa_utils_unittest.cpp
@@ -11,9 +11,7 @@
 #include "testing/test_support.h"
 #include "third_party/base/ptr_util.h"
 
-class XfaUtilsImpTest : public pdfium::FPDF_Test {};
-
-TEST_F(XfaUtilsImpTest, XFA_MapRotation) {
+TEST(XfaUtilsImpTest, XFA_MapRotation) {
   struct TestCase {
     int input;
     int expected_output;
@@ -29,7 +27,7 @@
   }
 }
 
-class XFANodeIteratorTest : public pdfium::FPDF_Test {
+class XFANodeIteratorTest : public testing::Test {
  public:
   class Node {
    public: