[DevTools] Move from InstrumentingAgents to InstrumentingSessions.

third_party/WebKit/Source/core/inspector/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//third_party/WebKit/Source/bindings/bindings.gni")
 import("//third_party/WebKit/Source/core/core.gni")
 
 visibility = [ "//third_party/WebKit/Source/*" ]
 
 action("instrumentation_sources") {
   script = "CodeGeneratorInstrumentation.py"
 
   inputs = [
     # Input file for the script.
     "InspectorInstrumentation.idl",
   ]
 
   outputs = [
     "$blink_core_output_dir/InspectorConsoleInstrumentationInl.h",
     "$blink_core_output_dir/InspectorInstrumentationInl.h",
     "$blink_core_output_dir/InspectorOverridesInl.h",
-    "$blink_core_output_dir/InstrumentingAgentsInl.h",
+    "$blink_core_output_dir/InstrumentingAgents.h",
     "$blink_core_output_dir/InspectorInstrumentationImpl.cpp",
   ]
 
   args = [
     rebase_path("InspectorInstrumentation.idl", root_build_dir),
     "--output_dir",
     rebase_path(blink_core_output_dir, root_build_dir),
   ]
 }