Always install the microdump signal handler on N+ devices.

android_webview/crash_reporter/aw_microdump_crash_reporter.cc

 // Copyright 2015 The Chromium 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 "android_webview/crash_reporter/aw_microdump_crash_reporter.h"
 
 #include "android_webview/common/aw_version_info_values.h"
+#include "base/android/build_info.h"
 #include "base/debug/dump_without_crashing.h"
 #include "base/files/file_path.h"
 #include "base/lazy_instance.h"
 #include "base/scoped_native_library.h"
 #include "base/synchronization/lock.h"
 #include "build/build_config.h"
 #include "components/crash/content/app/breakpad_linux.h"
 #include "components/crash/content/app/crash_reporter_client.h"
 #include "content/public/common/content_switches.h"
 
@@ skipping 42 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(AwCrashReporterClient);
 };
 
 base::LazyInstance<AwCrashReporterClient>::Leaky g_crash_reporter_client =
     LAZY_INSTANCE_INITIALIZER;
 
 bool g_enabled = false;
 
 #if defined(ARCH_CPU_X86_FAMILY)
 bool SafeToUseSignalHandler() {
+  // N+ shared library namespacing means that we are unable to dlopen
+  // libnativebridge (because it isn't in the NDK). However we know
+  // that, were we able to, the tests below would pass, so just return
+  // true here.
+  if (base::android::BuildInfo::GetInstance()->sdk_int() >=
+      base::android::SDK_VERSION_NOUGAT) {
+    return true;
+  }
   // On X86/64 there are binary translators that handle SIGSEGV in userspace and
   // may get chained after our handler - see http://crbug.com/477444
   // We attempt to detect this to work out when it's safe to install breakpad.
   // If anything doesn't seem right we assume it's not safe.
 
   // type and mangled name of android::NativeBridgeInitialized
   typedef bool (*InitializedFunc)();
   const char kInitializedSymbol[] = "_ZN7android23NativeBridgeInitializedEv";
   // type and mangled name of android::NativeBridgeGetVersion
   typedef uint32_t (*VersionFunc)();
@@ skipping 64 matching lines @@
     const std::string& gpu_fingerprint) {
   breakpad::AddGpuFingerprintToMicrodumpCrashHandler(gpu_fingerprint);
 }
 
 bool DumpWithoutCrashingToFd(int fd) {
   return g_crash_reporter_client.Pointer()->DumpWithoutCrashingToFd(fd);
 }
 
 }  // namespace crash_reporter
 }  // namespace android_webview