Support storing information about what modules are loaded in the process.

base/debug/activity_analyzer.cc

Index: base/debug/activity_analyzer.cc
diff --git a/base/debug/activity_analyzer.cc b/base/debug/activity_analyzer.cc
index 6a483f38fba78dd6c06e7b4c2b8517d4be1f43a4..644511720d0222969ce0df03225643621a3bca70 100644
--- a/base/debug/activity_analyzer.cc
+++ b/base/debug/activity_analyzer.cc
@@ -159,6 +159,27 @@ std::vector<std::string> GlobalActivityAnalyzer::GetLogMessages() {
   return messages;
 }
 
+std::vector<GlobalActivityTracker::ModuleInfo>
+GlobalActivityAnalyzer::GetModules() {
+  std::vector<GlobalActivityTracker::ModuleInfo> modules;
+  PersistentMemoryAllocator::Reference ref;
+
+  PersistentMemoryAllocator::Iterator iter(allocator_.get());
+  while ((ref = iter.GetNextOfType(
+              GlobalActivityTracker::kTypeIdModuleInfoRecord)) != 0) {
+    const GlobalActivityTracker::ModuleInfoRecord* record =
+        allocator_->GetAsObject<GlobalActivityTracker::ModuleInfoRecord>(
+            ref, GlobalActivityTracker::kTypeIdModuleInfoRecord);
+    if (record) {
+      GlobalActivityTracker::ModuleInfo info;
+      record->DecodeTo(&info, allocator_->GetAllocSize(ref));
+      modules.push_back(std::move(info));
+    }
+  }
+
+  return modules;
+}
+
 GlobalActivityAnalyzer::ProgramLocation
 GlobalActivityAnalyzer::GetProgramLocationFromAddress(uint64_t address) {
   // TODO(bcwhite): Implement this.