Add the TID to the CallStack.

R=ivanpe@chromium.org

Review URL: https://codereview.chromium.org/1849933002 .

src/google_breakpad/processor/call_stack.h

@@ -45,6 +45,7 @@
 #ifndef GOOGLE_BREAKPAD_PROCESSOR_CALL_STACK_H__
 #define GOOGLE_BREAKPAD_PROCESSOR_CALL_STACK_H__
 
+#include <cstdint>
 #include <vector>
 
 namespace google_breakpad {
@@ -64,12 +65,21 @@ class CallStack {
 
   const vector<StackFrame*>* frames() const { return &frames_; }
 
+  // Set the TID associated with this call stack.
+  void set_tid(uint32_t tid) { tid_ = tid; }
+
+  uint32_t tid() { return tid_; }
+
  private:
   // Stackwalker is responsible for building the frames_ vector.
   friend class Stackwalker;
 
   // Storage for pushed frames.
   vector<StackFrame*> frames_;
+
+  // The TID associated with this call stack. Default to 0 if it's not
+  // available.
+  uint32_t tid_;
 };
 
 }  // namespace google_breakpad

src/processor/call_stack.cc

@@ -48,6 +48,7 @@ void CallStack::Clear() {
        ++iterator) {
     delete *iterator;
   }
+  tid_ = 0;
 }
 
 }  // namespace google_breakpad

src/processor/minidump_processor.cc

@@ -267,6 +267,7 @@ ProcessResult MinidumpProcessor::Process(
       // one bad thread.
       BPLOG(ERROR) << "No stackwalker for " << thread_string;
     }
+    stack->set_tid(thread_id);
     process_state->threads_.push_back(stack.release());
     process_state->thread_memory_regions_.push_back(thread_memory);
   }

src/processor/minidump_processor_unittest.cc

@@ -414,6 +414,7 @@ TEST_F(MinidumpProcessorTest, TestBasicProcessing) {
   ASSERT_EQ(state.crash_reason(), "EXCEPTION_ACCESS_VIOLATION_WRITE");
   ASSERT_EQ(state.crash_address(), 0x45U);
   ASSERT_EQ(state.threads()->size(), size_t(1));
+  EXPECT_EQ((*state.threads())[0]->tid(), 3060);
   ASSERT_EQ(state.requesting_thread(), 0);
   EXPECT_EQ(1171480435U, state.time_date_stamp());
   EXPECT_EQ(1171480435U, state.process_create_time());