Add Inspector Agent for WebPerf, add probes in V8ScriptRunner.

third_party/WebKit/Source/bindings/core/v8/V8ScriptRunner.cpp

Index: third_party/WebKit/Source/bindings/core/v8/V8ScriptRunner.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8ScriptRunner.cpp b/third_party/WebKit/Source/bindings/core/v8/V8ScriptRunner.cpp
index f7258b0a58a5c024c2a58b189e65bfc0ef3c2686..0eb13540d0db70289f1854b17ed806dba1a13a99 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8ScriptRunner.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/V8ScriptRunner.cpp
@@ -35,6 +35,7 @@
 #include "core/fetch/CachedMetadata.h"
 #include "core/fetch/ScriptResource.h"
 #include "core/frame/LocalFrame.h"
+#include "core/inspector/InspectorInstrumentation.h"
 #include "core/inspector/InspectorTraceEvents.h"
 #include "core/inspector/ThreadDebugger.h"
 #include "platform/Histogram.h"
@@ -403,6 +404,9 @@ v8::MaybeLocal<v8::Value> V8ScriptRunner::runCompiledScript(v8::Isolate* isolate
 
     RELEASE_ASSERT(!context->isIteratingOverObservers());
 
+    InspectorInstrumentation::willExecuteScript(

[pfeldman, 2016/08/15 17:59:55]

Here and below: you can pass |context| here, it'll resolve to the instrumenting
agent within frame or worker.

[panicker, 2016/08/15 20:48:55]

Done.

+        context->isDocument() ? toDocument(context)->frame() : nullptr);
+
     // Run the script and keep track of the current recursion depth.
     v8::MaybeLocal<v8::Value> result;
     {
@@ -416,6 +420,8 @@ v8::MaybeLocal<v8::Value> V8ScriptRunner::runCompiledScript(v8::Isolate* isolate
         ThreadDebugger::didExecuteScript(isolate);
     }
 
+    InspectorInstrumentation::didExecuteScript(
+        context->isDocument() ? toDocument(context)->frame() : nullptr);
     crashIfIsolateIsDead(isolate);
     return result;
 }
@@ -502,6 +508,9 @@ v8::MaybeLocal<v8::Value> V8ScriptRunner::callFunction(v8::Local<v8::Function> f
     }
     if (!depth)
         TRACE_EVENT_BEGIN1("devtools.timeline", "FunctionCall", "data", InspectorFunctionCallEvent::data(context, function));
+    InspectorInstrumentation::willExecuteScript(
+        context->isDocument() ? toDocument(context)->frame() : nullptr);
+
     v8::MaybeLocal<v8::Value> result;
     {
         // Create an extra block so FunctionCall trace event end phase is recorded after
@@ -512,6 +521,8 @@ v8::MaybeLocal<v8::Value> V8ScriptRunner::callFunction(v8::Local<v8::Function> f
         crashIfIsolateIsDead(isolate);
         ThreadDebugger::didExecuteScript(isolate);
     }
+    InspectorInstrumentation::didExecuteScript(
+        context->isDocument() ? toDocument(context)->frame() : nullptr);
     if (!depth)
         TRACE_EVENT_END0("devtools.timeline", "FunctionCall");
     return result;