C++ profiler: publish the new API, make compatible with WebKit / Chromium.

src/profile-generator.h

Index: src/profile-generator.h
diff --git a/src/profile-generator.h b/src/profile-generator.h
index 83d7a25fcf33324ec87d240e0ce89c1b67230bf5..892fdeaa2b5749ef985263da414288ce72189179 100644
--- a/src/profile-generator.h
+++ b/src/profile-generator.h
@@ -50,17 +50,20 @@ class CodeEntry {
   INLINE(const char* name() const) { return name_; }
   INLINE(const char* resource_name() const) { return resource_name_; }
   INLINE(int line_number() const) { return line_number_; }
+  INLINE(unsigned long call_uid() const) { return call_uid_; }
 
   static const char* kEmptyNamePrefix;
-  static const int kNoLineNumberInfo;
 
  private:
+  const unsigned long call_uid_;
   Logger::LogEventsAndTags tag_;
   const char* name_prefix_;
   const char* name_;
   const char* resource_name_;
   int line_number_;
 
+  static unsigned long next_call_uid_;
+
   DISALLOW_COPY_AND_ASSIGN(CodeEntry);
 };
 
@@ -103,7 +106,7 @@ class ProfileNode {
 
 class ProfileTree {
  public:
-  ProfileTree() : root_(new ProfileNode(NULL)) { }
+  ProfileTree();
   ~ProfileTree();
 
   void AddPathFromEnd(const Vector<CodeEntry*>& path);
@@ -121,6 +124,7 @@ class ProfileTree {
   template <typename Callback>
   void TraverseBreadthFirstPostOrder(Callback* callback);
 
+  CodeEntry root_entry_;
   ProfileNode* root_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileTree);
@@ -219,6 +223,7 @@ class CpuProfilesCollection {
   void AddPathToCurrentProfiles(const Vector<CodeEntry*>& path);
 
  private:
+  const char* GetFunctionName(String* name);
   const char* GetName(String* name);
   const char* GetName(int args_count);
 
@@ -282,6 +287,7 @@ class ProfileGenerator {
  private:
   CpuProfilesCollection* profiles_;
   CodeMap code_map_;
+  CodeEntry* program_entry_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileGenerator);
 };