linux_core_dumper: partially disable test on Android

Running this test on android-kitkat-arm-rel fails for some reason:
[ RUN      ] LinuxCoreDumperTest.VerifyExceptionDetails
linux_core_dumper_unittest.cc:170: Failure
Expected: (0U) != (dumper.crash_address()), actual: 0 vs 0
linux_core_dumper_unittest.cc:178: Failure
Expected equality of these values:
  2U
    Which is: 2
  info.size()
    Which is: 0
[  FAILED  ] LinuxCoreDumperTest.VerifyExceptionDetails (7 ms)

Disable it for now on Android until someone can look into it.

Bug: google-breakpad:791
Change-Id: I40a5e3dbeeb44e5eb0df187e61d55e07d8ad3613
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/1546778
Reviewed-by: Mark Mentovai <mark@chromium.org>

src/client/linux/minidump_writer/linux_core_dumper_unittest.cc

@@ -166,6 +166,15 @@ TEST(LinuxCoreDumperTest, VerifyExceptionDetails) {
 
   EXPECT_TRUE(dumper.IsPostMortem());
 
+#if defined(__ANDROID__)
+  // TODO: For some reason, Android doesn't seem to pass this.
+  if (!dumper.crash_address()) {
+    fprintf(stderr, "LinuxCoreDumperTest.VerifyExceptionDetails test is "
+            "skipped due to missing signal details on Android");
+    return;
+  }
+#endif
+
   // Check the exception details.
   EXPECT_NE(0U, dumper.crash_address());
   EXPECT_EQ(kCrashSignal, dumper.crash_signal());