Create a thermal manager class and wire it in to nanobench behind a flag

gyp/tools.gyp

Index: gyp/tools.gyp
diff --git a/gyp/tools.gyp b/gyp/tools.gyp
index b585e16541dd7088902189d71d3ff1ad2b2376bd..c7443f7fd6e0c8995b6a1e600e61b365ed07c2f9 100644
--- a/gyp/tools.gyp
+++ b/gyp/tools.gyp
@@ -414,6 +414,19 @@
       ],
     },
     {
+      'target_name': 'thermal_manager',
+      'type': 'static_library',
+      'sources': [
+        '../tools/ThermalManager.cpp',
+      ],
+      'dependencies': [
+        'skia_lib.gyp:skia_lib',
+      ],
+      'direct_dependent_settings': {
+        'include_dirs': [ '../tools', ],
+      },
+    },
+    {
       'target_name': 'test_public_includes',
       'type': 'static_library',
       # Ensure that our public headers don't have unused params so that clients