Rename ScopedThreadHeapUsage to ThreadHeapUsageTracker.

base/BUILD.gn

Index: base/BUILD.gn
diff --git a/base/BUILD.gn b/base/BUILD.gn
index 154c06884df059c1db7d4e05c49923ad6fe52e01..1c47b51f922ea12e2ee5c48af724e507518f0fbb 100644
--- a/base/BUILD.gn
+++ b/base/BUILD.gn
@@ -263,6 +263,13 @@ component("base") {
     "cpu.h",
     "critical_closure.h",
     "critical_closure_internal_ios.mm",
+
+    # This file depends on files from the "debug/allocator" target,
+    # but this target does not depend on "debug/allocator".
+    "debug/activity_analyzer.cc",
+    "debug/activity_analyzer.h",
+    "debug/activity_tracker.cc",
+    "debug/activity_tracker.h",
     "debug/alias.cc",
     "debug/alias.h",
     "debug/asan_invalid_access.cc",
@@ -279,22 +286,12 @@ component("base") {
     "debug/dump_without_crashing.h",
     "debug/gdi_debug_util_win.cc",
     "debug/gdi_debug_util_win.h",
-
-    # This file depends on files from the "debug/allocator" target,
-    # but this target does not depend on "debug/allocator" (see
-    # allocator.gyp for details).
-    "debug/activity_analyzer.cc",
-    "debug/activity_analyzer.h",
-    "debug/activity_tracker.cc",
-    "debug/activity_tracker.h",
     "debug/leak_annotations.h",
     "debug/leak_tracker.h",
     "debug/proc_maps_linux.cc",
     "debug/proc_maps_linux.h",
     "debug/profiler.cc",
     "debug/profiler.h",
-    "debug/scoped_thread_heap_usage.cc",
-    "debug/scoped_thread_heap_usage.h",
     "debug/stack_trace.cc",
     "debug/stack_trace.h",
     "debug/stack_trace_android.cc",
@@ -302,6 +299,8 @@ component("base") {
     "debug/stack_trace_win.cc",
     "debug/task_annotator.cc",
     "debug/task_annotator.h",
+    "debug/thread_heap_usage_tracker.cc",
+    "debug/thread_heap_usage_tracker.h",
     "deferred_sequenced_task_runner.cc",
     "deferred_sequenced_task_runner.h",
     "environment.cc",
@@ -1782,9 +1781,9 @@ test("base_unittests") {
     "debug/debugger_unittest.cc",
     "debug/leak_tracker_unittest.cc",
     "debug/proc_maps_linux_unittest.cc",
-    "debug/scoped_thread_heap_usage_unittest.cc",
     "debug/stack_trace_unittest.cc",
     "debug/task_annotator_unittest.cc",
+    "debug/thread_heap_usage_tracker_unittest.cc",
     "deferred_sequenced_task_runner_unittest.cc",
     "environment_unittest.cc",
     "feature_list_unittest.cc",