fix build failures

Change-Id: I9e745d2a4b3f780941ba286bbafa5d4169d172f7
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/1653863
Reviewed-by: Mark Mentovai <mark@chromium.org>

src/processor/stackwalker_amd64_unittest.cc

@@ -62,6 +62,7 @@ using google_breakpad::test_assembler::Section;
 using std::vector;
 using testing::_;
 using testing::AnyNumber;
+using testing::DoAll;
 using testing::Return;
 using testing::SetArgumentPointee;
 using testing::Test;

src/processor/stackwalker_arm64_unittest.cc

@@ -64,6 +64,7 @@ using google_breakpad::test_assembler::Section;
 using std::vector;
 using testing::_;
 using testing::AnyNumber;
+using testing::DoAll;
 using testing::Return;
 using testing::SetArgumentPointee;
 using testing::Test;

src/processor/stackwalker_arm_unittest.cc

@@ -64,6 +64,7 @@ using google_breakpad::test_assembler::Section;
 using std::vector;
 using testing::_;
 using testing::AnyNumber;
+using testing::DoAll;
 using testing::Return;
 using testing::SetArgumentPointee;
 using testing::Test;

src/processor/stackwalker_x86_unittest.cc

@@ -63,6 +63,7 @@ using google_breakpad::test_assembler::Section;
 using std::vector;
 using testing::_;
 using testing::AnyNumber;
+using testing::DoAll;
 using testing::Return;
 using testing::SetArgumentPointee;
 using testing::Test;