Double stack scanning length in stackwalker

src/google_breakpad/processor/stackwalker.h

Index: src/google_breakpad/processor/stackwalker.h
===================================================================
--- a/src/google_breakpad/processor/stackwalker.h
+++ b/src/google_breakpad/processor/stackwalker.h
@@ -116,17 +116,17 @@ class Stackwalker {
   // Returns true if a valid-looking instruction pointer was found.
   // When returning true, sets location_found to the address at which
   // the value was found, and ip_found to the value contained at that
   // location in memory.
   template<typename InstructionType>
   bool ScanForReturnAddress(InstructionType location_start,
                             InstructionType *location_found,
                             InstructionType *ip_found) {
-    const int kRASearchWords = 15;
+    const int kRASearchWords = 30;
     for (InstructionType location = location_start;
          location <= location_start + kRASearchWords * sizeof(InstructionType);
          location += sizeof(InstructionType)) {
       InstructionType ip;
       if (!memory_->GetMemoryAtAddress(location, &ip))
         break;
 
       if (modules_ && modules_->GetModuleForAddress(ip) &&