Roll breakpad and fix signal propagation for WebView crash handler

android_webview/common/aw_crash_handler.cc

 // Copyright 2014 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/common/aw_crash_handler.h"
 
 #include <android/log.h>
 #include <signal.h>
 #include <sys/prctl.h>
 #include <sys/syscall.h>
@@ skipping 31 matching lines @@
   // We served our purpose. Now restore the old crash handlers. If the embedder
   // did register a custom crash handler, it will be invoked by the kernel after
   // this function returns. Otherwise, this will end up invoking the default
   // signal disposition.
   for (uint32_t i = 0; i < arraysize(kExceptionSignals); ++i) {
     if (sigaction(kExceptionSignals[i], &old_handlers[i], NULL) == -1) {
       signal(kExceptionSignals[i], SIG_DFL);
     }
   }
 
-  if ((info != NULL && info->si_pid) || sig == SIGABRT) {
+  if ((info != NULL && SI_FROMUSER(info)) || sig == SIGABRT) {
     // This signal was triggered by somebody sending us the signal with kill().
     // In order to retrigger it, we have to queue a new signal by calling
     // kill() ourselves.  The special case (si_pid == 0 && sig == SIGABRT) is
     // due to the kernel sending a SIGABRT from a user request via SysRQ.
     if (syscall(__NR_tgkill, getpid(), syscall(__NR_gettid), sig) < 0) {
       // If we failed to kill ourselves resort to terminating uncleanly.
       exit(1);
     }
   }
 }
@@ skipping 46 matching lines @@
       LOG(ERROR) << "Error while overriding handler for signal "
                  << kExceptionSignals[i];
     }
   }
 
   crash_handler_registered = true;
 }
 
 }  // namespace crash_handler
 }  // namespace android_webview