Move platform abstraction to base library

src/profile-generator.h

Index: src/profile-generator.h
diff --git a/src/profile-generator.h b/src/profile-generator.h
index 9e8be874e22dec4aec0ae2a3bf3165369563e1dd..1fb2a464b3159be02dc9bdf30c3f0e17b700a23e 100644
--- a/src/profile-generator.h
+++ b/src/profile-generator.h
@@ -176,7 +176,7 @@ class CpuProfile {
   CpuProfile(const char* title, bool record_samples);
 
   // Add pc -> ... -> main() call path to the profile.
-  void AddPath(TimeTicks timestamp, const Vector<CodeEntry*>& path);
+  void AddPath(base::TimeTicks timestamp, const Vector<CodeEntry*>& path);
   void CalculateTotalTicksAndSamplingRate();
 
   const char* title() const { return title_; }
@@ -184,10 +184,12 @@ class CpuProfile {
 
   int samples_count() const { return samples_.length(); }
   ProfileNode* sample(int index) const { return samples_.at(index); }
-  TimeTicks sample_timestamp(int index) const { return timestamps_.at(index); }
+  base::TimeTicks sample_timestamp(int index) const {
+    return timestamps_.at(index);
+  }
 
-  TimeTicks start_time() const { return start_time_; }
-  TimeTicks end_time() const { return end_time_; }
+  base::TimeTicks start_time() const { return start_time_; }
+  base::TimeTicks end_time() const { return end_time_; }
 
   void UpdateTicksScale();
 
@@ -196,10 +198,10 @@ class CpuProfile {
  private:
   const char* title_;
   bool record_samples_;
-  TimeTicks start_time_;
-  TimeTicks end_time_;
+  base::TimeTicks start_time_;
+  base::TimeTicks end_time_;
   List<ProfileNode*> samples_;
-  List<TimeTicks> timestamps_;
+  List<base::TimeTicks> timestamps_;
   ProfileTree top_down_;
 
   DISALLOW_COPY_AND_ASSIGN(CpuProfile);
@@ -285,7 +287,7 @@ class CpuProfilesCollection {
 
   // Called from profile generator thread.
   void AddPathToCurrentProfiles(
-      TimeTicks timestamp, const Vector<CodeEntry*>& path);
+      base::TimeTicks timestamp, const Vector<CodeEntry*>& path);
 
   // Limits the number of profiles that can be simultaneously collected.
   static const int kMaxSimultaneousProfiles = 100;
@@ -297,7 +299,7 @@ class CpuProfilesCollection {
 
   // Accessed by VM thread and profile generator thread.
   List<CpuProfile*> current_profiles_;
-  Semaphore current_profiles_semaphore_;
+  base::Semaphore current_profiles_semaphore_;
 
   DISALLOW_COPY_AND_ASSIGN(CpuProfilesCollection);
 };