[instrumentation] Introduce InspectorTraceEvents agent

third_party/WebKit/Source/core/inspector/InspectorTraceEvents.cpp

Index: third_party/WebKit/Source/core/inspector/InspectorTraceEvents.cpp
diff --git a/third_party/WebKit/Source/core/inspector/InspectorTraceEvents.cpp b/third_party/WebKit/Source/core/inspector/InspectorTraceEvents.cpp
index 0bc944802575e667315ed993cb24b782d1ee8517..424815979bf86101fe8131fbb5ccafced09577b3 100644
--- a/third_party/WebKit/Source/core/inspector/InspectorTraceEvents.cpp
+++ b/third_party/WebKit/Source/core/inspector/InspectorTraceEvents.cpp
@@ -63,6 +63,53 @@ void setCallStack(TracedValue* value) {
   v8::Isolate::GetCurrent()->GetCpuProfiler()->CollectSample();
 }
 
+void InspectorTraceEvents::willSendRequest(
+    LocalFrame* frame,
+    unsigned long identifier,
+    DocumentLoader*,
+    ResourceRequest& request,
+    const ResourceResponse& redirectResponse,
+    const FetchInitiatorInfo&) {
+  TRACE_EVENT1("devtools.timeline", "ResourceSendRequest", "data",

[pfeldman, 2017/03/06 23:31:24]

why is it scoped?

[alph, 2017/03/07 00:57:48]

Done.

+               InspectorSendRequestEvent::data(identifier, frame, request));
+}
+
+void InspectorTraceEvents::didReceiveResourceResponse(
+    LocalFrame* frame,
+    unsigned long identifier,
+    DocumentLoader*,
+    const ResourceResponse& response,
+    Resource*) {
+  TRACE_EVENT1(
+      "devtools.timeline", "ResourceReceiveResponse", "data",
+      InspectorReceiveResponseEvent::data(identifier, frame, response));
+}
+
+void InspectorTraceEvents::didReceiveData(LocalFrame* frame,
+                                          unsigned long identifier,
+                                          const char* data,
+                                          int encodedDataLength) {
+  TRACE_EVENT1(
+      "devtools.timeline", "ResourceReceivedData", "data",
+      InspectorReceiveDataEvent::data(identifier, frame, encodedDataLength));
+}
+
+void InspectorTraceEvents::didFinishLoading(unsigned long identifier,
+                                            double finishTime,
+                                            int64_t encodedDataLength,
+                                            int64_t decodedBodyLength) {
+  TRACE_EVENT1(
+      "devtools.timeline", "ResourceFinish", "data",
+      InspectorResourceFinishEvent::data(identifier, finishTime, false,
+                                         encodedDataLength, decodedBodyLength));
+}
+
+void InspectorTraceEvents::didFailLoading(unsigned long identifier,
+                                          const ResourceError&) {
+  TRACE_EVENT1("devtools.timeline", "ResourceFinish", "data",
+               InspectorResourceFinishEvent::data(identifier, 0, true, 0, 0));
+}
+
 namespace {
 
 void setNodeInfo(TracedValue* value,