Maintain API compatibility with older versions of V8.

src/profile-generator.cc

Index: src/profile-generator.cc
diff --git a/src/profile-generator.cc b/src/profile-generator.cc
index ce07213b029403646a4f14d8086fc5269f57c6b3..2bf1724715f066932617f13ceca013d714aa93d2 100644
--- a/src/profile-generator.cc
+++ b/src/profile-generator.cc
@@ -296,7 +296,6 @@ ProfileTree::ProfileTree()
                   "",
                   0,
                   TokenEnumerator::kNoSecurityToken),
-      next_node_id_(1),
       root_(new ProfileNode(this, &root_entry_)) {
 }
 
@@ -307,7 +306,7 @@ ProfileTree::~ProfileTree() {
 }
 
 
-ProfileNode* ProfileTree::AddPathFromEnd(const Vector<CodeEntry*>& path) {
+void ProfileTree::AddPathFromEnd(const Vector<CodeEntry*>& path) {
   ProfileNode* node = root_;
   for (CodeEntry** entry = path.start() + path.length() - 1;
        entry != path.start() - 1;
@@ -317,7 +316,6 @@ ProfileNode* ProfileTree::AddPathFromEnd(const Vector<CodeEntry*>& path) {
     }
   }
   node->IncrementSelfTicks();
-  return node;
 }
 
 
@@ -469,8 +467,7 @@ void ProfileTree::ShortPrint() {
 
 
 void CpuProfile::AddPath(const Vector<CodeEntry*>& path) {
-  ProfileNode* top_frame_node = top_down_.AddPathFromEnd(path);
-  if (record_samples_) samples_.Add(top_frame_node);
+  top_down_.AddPathFromEnd(path);
 }
 
 
@@ -486,7 +483,7 @@ void CpuProfile::SetActualSamplingRate(double actual_sampling_rate) {
 
 CpuProfile* CpuProfile::FilteredClone(int security_token_id) {
   ASSERT(security_token_id != TokenEnumerator::kNoSecurityToken);
-  CpuProfile* clone = new CpuProfile(title_, uid_, false);
+  CpuProfile* clone = new CpuProfile(title_, uid_);
   clone->top_down_.FilteredClone(&top_down_, security_token_id);
   return clone;
 }
@@ -612,8 +609,7 @@ CpuProfilesCollection::~CpuProfilesCollection() {
 }
 
 
-bool CpuProfilesCollection::StartProfiling(const char* title, unsigned uid,
-                                           bool record_samples) {
+bool CpuProfilesCollection::StartProfiling(const char* title, unsigned uid) {
   ASSERT(uid > 0);
   current_profiles_semaphore_->Wait();
   if (current_profiles_.length() >= kMaxSimultaneousProfiles) {
@@ -627,12 +623,17 @@ bool CpuProfilesCollection::StartProfiling(const char* title, unsigned uid,
       return false;
     }
   }
-  current_profiles_.Add(new CpuProfile(title, uid, record_samples));
+  current_profiles_.Add(new CpuProfile(title, uid));
   current_profiles_semaphore_->Signal();
   return true;
 }
 
 
+bool CpuProfilesCollection::StartProfiling(String* title, unsigned uid) {
+  return StartProfiling(GetName(title), uid);
+}
+
+
 CpuProfile* CpuProfilesCollection::StopProfiling(int security_token_id,
                                                  const char* title,
                                                  double actual_sampling_rate) {