Implementation of the GreenWeb language extensions.

content/renderer/greenweb_latency_tracking.h

Index: content/renderer/greenweb_latency_tracking.h
diff --git a/content/renderer/greenweb_latency_tracking.h b/content/renderer/greenweb_latency_tracking.h
new file mode 100644
index 0000000000000000000000000000000000000000..f4072b74af44c641688fc8326f9e9b9fa0893eb2
--- /dev/null
+++ b/content/renderer/greenweb_latency_tracking.h
@@ -0,0 +1,71 @@
+#ifndef GREENWEB_LATENCY_TRACKING_H_
+#define GREENWEB_LATENCY_TRACKING_H_
+
+#include <map>
+
+#include "base/time/time.h"
+
+#undef  EBS_DEBUG_TRACE_EVENT
+#define EBS_DEBUG_SCHED
+#undef  EBS_DEBUG_IPC
+#define EBS_DEBUG_OS
+
+#ifdef EBS_DEBUG_SCHED
+  #define dbg_sched_fprintf(...) do{ fprintf( __VA_ARGS__ ); } while( false )
+  #define dbg_sched_cout(x) do{ std::cout << x << std::endl; } while( false )
+#else
+  #define dbg_sched_fprintf(...) do{ } while ( false )
+  #define dbg_sched_cout(x) do{ } while( false )
+#endif
+
+#ifdef EBS_DEBUG_IPC
+  #define dbg_ipc_fprintf(...) do{ fprintf( __VA_ARGS__ ); } while( false )
+  #define dbg_ipc_cout(x) do{ std::cout << x << std::endl; } while( false )
+#else
+  #define dbg_ipc_fprintf(...) do{ } while ( false )
+  #define dbg_ipc_cout(x) do{ } while( false )
+#endif
+
+struct GreenWebLatencyComponent {
+  base::TimeTicks callback_start;
+  // main thread time = callback + layout or callback,
+  // depending on if HandleInputEventMainCommit is executed
+  int64 latency;
+  int64 dom_node;
+
+  std::map<int64, int64> FreqStatStartMap;
+
+  GreenWebLatencyComponent() : dom_node(0) {}
+};
+
+struct DOMLatencyMapComponent {
+  int64 latency;
+  std::map<int64, int64> FreqStatMap;
+};
+
+typedef std::map<int64, std::map<uint32, int64>> NodeFreqLatencyMap;
+typedef std::map<uint32, int64> FreqLatencyMap;
+
+// Map from LatencyInfo trace_id_ to GreenWebLatencyComponent
+extern std::map<int64, GreenWebLatencyComponent> InputLatencyMap;
+
+// Map from DOM Node address to latency (GreenWebLatencyComponent.latency)
+extern std::map<int64, DOMLatencyMapComponent> DOMLatencyMap;
+
+// trace_id_ of LatencyInfo
+extern int64 InputLatencyID;
+
+// QoS Type
+extern char g_qos_type;
+
+// QoS target
+extern int g_qos_target;
+
+// EBS enabled
+extern bool g_ebs_enabled;
+
+namespace content {
+  extern void process_freq_stat(std::map<int64, int64>*, std::map<int64, int64>*);
+}
+
+#endif  // GREENWEB_LATENCY_TRACKING_H_