Update gtest and gmock to 1.8.x.

This applies parts of https://crrev.com/469551 and
https://crrev.com/471303 to PDFium.

Change-Id: Ifbb8e4c300bd276fe3c6fe60d19ebb1618be8936
Reviewed-on: https://pdfium-review.googlesource.com/28791
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>

2 files changed, 162 insertions, 0 deletions

diff --git a/third_party/googletest/BUILD.gn b/third_party/googletest/BUILD.gn
new file mode 100644
index 0000000000..d04d804046
--- /dev/null
+++ b/third_party/googletest/BUILD.gn
@@ -0,0 +1,144 @@
+# Copyright 2018 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.
+
+config("gtest_config") {
+  visibility = [ ":*" ]  # gmock also shares this config.
+
+  defines = [
+    # Chromium always links googletest statically, so no API qualifier is
+    # necessary. The definition in gtest-port.h at the time of this writing
+    # causes crashes in content_browsertests.
+    "GTEST_API_=",
+
+    # In order to allow regex matches in gtest to be shared between Windows
+    # and other systems, we tell gtest to always use its internal engine.
+    "GTEST_HAS_POSIX_RE=0",
+    "GTEST_LANG_CXX11=1",
+
+    # ::testing::Combine, which is heavily used in Chromium, is gated on
+    # tr1::tuple. Upstream avoids using tr1::tuple on Visual Studio 2017+,
+    # because it causes warnings. We'll take (and ignore) the warnings to keep
+    # our ::testing::Combine.
+    "GTEST_HAS_TR1_TUPLE=1",
+  ]
+
+  # Gtest headers need to be able to find themselves.
+  include_dirs = [ "src/googletest/include" ]
+
+  if (is_win) {
+    cflags = [ "/wd4800" ]  # Unused variable warning.
+  }
+}
+
+config("gmock_config") {
+  # Gmock headers need to be able to find themselves.
+  include_dirs = [
+    "custom",
+    "src/googlemock/include",
+  ]
+}
+
+# Do NOT depend on this directly. Use //testing/gtest instead.
+# See README.chromium for details.
+source_set("gtest") {
+  testonly = true
+  sources = [
+    "src/googletest/include/gtest/gtest-death-test.h",
+    "src/googletest/include/gtest/gtest-message.h",
+    "src/googletest/include/gtest/gtest-param-test.h",
+    "src/googletest/include/gtest/gtest-printers.h",
+    "src/googletest/include/gtest/gtest-spi.h",
+    "src/googletest/include/gtest/gtest-test-part.h",
+    "src/googletest/include/gtest/gtest-typed-test.h",
+    "src/googletest/include/gtest/gtest.h",
+    "src/googletest/include/gtest/gtest_pred_impl.h",
+    "src/googletest/include/gtest/internal/gtest-death-test-internal.h",
+    "src/googletest/include/gtest/internal/gtest-filepath.h",
+    "src/googletest/include/gtest/internal/gtest-internal.h",
+    "src/googletest/include/gtest/internal/gtest-linked_ptr.h",
+    "src/googletest/include/gtest/internal/gtest-param-util-generated.h",
+    "src/googletest/include/gtest/internal/gtest-param-util.h",
+    "src/googletest/include/gtest/internal/gtest-port.h",
+    "src/googletest/include/gtest/internal/gtest-string.h",
+    "src/googletest/include/gtest/internal/gtest-tuple.h",
+    "src/googletest/include/gtest/internal/gtest-type-util.h",
+
+    #"src/googletest/src/gtest-all.cc",  # Not needed by our build.
+    "src/googletest/src/gtest-death-test.cc",
+    "src/googletest/src/gtest-filepath.cc",
+    "src/googletest/src/gtest-internal-inl.h",
+    "src/googletest/src/gtest-port.cc",
+    "src/googletest/src/gtest-printers.cc",
+    "src/googletest/src/gtest-test-part.cc",
+    "src/googletest/src/gtest-typed-test.cc",
+    "src/googletest/src/gtest.cc",
+  ]
+
+  # Some files include "src/gtest-internal-inl.h".
+  include_dirs = [ "src/googletest" ]
+
+  all_dependent_configs = [ ":gtest_config" ]
+
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [ "//build/config/compiler:no_chromium_code" ]
+}
+
+# Do NOT depend on this directly. Use //testing/gtest:gtest_main instead.
+# See README.chromium for details.
+source_set("gtest_main") {
+  testonly = true
+  sources = [
+    "src/googletest/src/gtest_main.cc",
+  ]
+  deps = [
+    ":gtest",
+  ]
+}
+
+# Do NOT depend on this directly. Use //testing/gmock:gmock_main instead.
+# See README.chromium for details.
+source_set("gmock") {
+  testonly = true
+  sources = [
+    "src/googlemock/include/gmock/gmock-actions.h",
+    "src/googlemock/include/gmock/gmock-cardinalities.h",
+    "src/googlemock/include/gmock/gmock-generated-actions.h",
+    "src/googlemock/include/gmock/gmock-generated-function-mockers.h",
+    "src/googlemock/include/gmock/gmock-generated-matchers.h",
+    "src/googlemock/include/gmock/gmock-generated-nice-strict.h",
+    "src/googlemock/include/gmock/gmock-matchers.h",
+    "src/googlemock/include/gmock/gmock-spec-builders.h",
+    "src/googlemock/include/gmock/gmock.h",
+    "src/googlemock/include/gmock/internal/gmock-generated-internal-utils.h",
+    "src/googlemock/include/gmock/internal/gmock-internal-utils.h",
+    "src/googlemock/include/gmock/internal/gmock-port.h",
+
+    # gmock helpers.
+    "custom/gmock/internal/custom/gmock-port.h",
+
+    #"src/googlemock/src/gmock-all.cc",  # Not needed by our build.
+    "src/googlemock/src/gmock-cardinalities.cc",
+    "src/googlemock/src/gmock-internal-utils.cc",
+    "src/googlemock/src/gmock-matchers.cc",
+    "src/googlemock/src/gmock-spec-builders.cc",
+    "src/googlemock/src/gmock.cc",
+  ]
+
+  public_configs = [
+    ":gmock_config",
+    ":gtest_config",
+  ]
+}
+
+# Do NOT depend on this directly. Use //testing/gmock:gmock_main instead.
+# See README.chromium for details.
+static_library("gmock_main") {
+  testonly = true
+  sources = [
+    "src/googlemock/src/gmock_main.cc",
+  ]
+  deps = [
+    ":gmock",
+  ]
+}
diff --git a/third_party/googletest/README.pdfium b/third_party/googletest/README.pdfium
new file mode 100644
index 0000000000..1b3626cf4b
--- /dev/null
+++ b/third_party/googletest/README.pdfium
@@ -0,0 +1,18 @@
+Name: Google Test: Google's C++ Testing Framework
+Short Name: googletest
+URL: https://github.com/google/googletest.git
+Version: 1.8.0.git-7d15497f7538fb531d0f025929d080743af421ee
+License: BSD
+License File: NOT_SHIPPED
+Security critical: no
+
+Google Test is imported as-is, to facilitate version bumping. However, the
+file/directory layout of Google Test is not yet considered stable. Therefore,
+until Google Test's layout stabilizes, PDFium code MUST NOT depend on it
+directly. Instead, PDFium code MUST:
+
+* #include the headers in testing/gtest and testing/gmock
+* use //testing/gtest(:gtest_main) and //testing/gmock(:gmock_main) in BUILD.gn
+  deps
+
+This will allow us to adapt to Google Test changes with minimal disruption.