Refactor the functions related to collecting code statistics to a new class.

src/heap/heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/heap/heap.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/ast/scopeinfo.h"
 #include "src/base/bits.h"
 #include "src/base/once.h"
 #include "src/base/utils/random-number-generator.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
 #include "src/compilation-cache.h"
 #include "src/conversions.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/global-handles.h"
 #include "src/heap/array-buffer-tracker-inl.h"
+#include "src/heap/code-stats.h"
 #include "src/heap/gc-idle-time-handler.h"
 #include "src/heap/gc-tracer.h"
 #include "src/heap/incremental-marking.h"
 #include "src/heap/mark-compact-inl.h"
 #include "src/heap/mark-compact.h"
 #include "src/heap/memory-reducer.h"
 #include "src/heap/object-stats.h"
 #include "src/heap/objects-visiting-inl.h"
 #include "src/heap/objects-visiting.h"
 #include "src/heap/remembered-set.h"
@@ skipping 4429 matching lines @@
       ExecutionAccess access(isolate());
       isolate()->stack_guard()->RequestGC();
       V8::GetCurrentPlatform()->CallOnForegroundThread(
           reinterpret_cast<v8::Isolate*>(isolate()),
           new MemoryPressureInterruptTask(this));
     }
   }
 }
 
 void Heap::CollectCodeStatistics() {
-  PagedSpace::ResetCodeAndMetadataStatistics(isolate());
+  CodeStatistics::ResetCodeAndMetadataStatistics(isolate());
   // We do not look for code in new space, or map space.  If code
   // somehow ends up in those spaces, we would miss it here.
-  code_space_->CollectCodeStatistics();
-  old_space_->CollectCodeStatistics();
-  lo_space_->CollectCodeStatistics();
+  CodeStatistics::CollectCodeStatistics(code_space_, isolate());
+  CodeStatistics::CollectCodeStatistics(old_space_, isolate());
+  CodeStatistics::CollectCodeStatistics(lo_space_, isolate());
 }
 
 #ifdef DEBUG
 
 void Heap::Print() {
   if (!HasBeenSetUp()) return;
   isolate()->PrintStack(stdout);
   AllSpaces spaces(this);
   for (Space* space = spaces.next(); space != NULL; space = spaces.next()) {
     space->Print();
   }
 }
 
 
 void Heap::ReportCodeStatistics(const char* title) {
   PrintF(">>>>>> Code Stats (%s) >>>>>>\n", title);
   CollectCodeStatistics();
-  PagedSpace::ReportCodeStatistics(isolate());
+  CodeStatistics::ReportCodeStatistics(isolate());
 }
 
 
 // This function expects that NewSpace's allocated objects histogram is
 // populated (via a call to CollectStatistics or else as a side effect of a
 // just-completed scavenge collection).
 void Heap::ReportHeapStatistics(const char* title) {
   USE(title);
   PrintF(">>>>>> =============== %s (%d) =============== >>>>>>\n", title,
          gc_count_);
@@ skipping 1868 matching lines @@
 }
 
 
 // static
 int Heap::GetStaticVisitorIdForMap(Map* map) {
   return StaticVisitorBase::GetVisitorId(map);
 }
 
 }  // namespace internal
 }  // namespace v8