Add a histogram for renderer memory usage.

webkit/glue/webkit_glue.cc

 // Copyright (c) 2012 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.
 
 #include "webkit/glue/webkit_glue.h"
 
 #if defined(OS_WIN)
 #include <objidl.h>
 #include <mlang.h>
 #elif defined(OS_POSIX) && !defined(OS_MACOSX)
 #include <sys/utsname.h>
 #endif
 
+#if defined(OS_LINUX)
+#include <malloc.h>
+#endif
+
 #include <limits>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
+#include "base/process_util.h"
 #include "base/string_piece.h"
 #include "base/string_tokenizer.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/sys_info.h"
 #include "base/utf_string_conversions.h"
 #include "net/base/escape.h"
 #include "net/url_request/url_request.h"
 #include "skia/ext/platform_canvas.h"
 #if defined(OS_MACOSX)
@@ skipping 298 matching lines @@
     case WebKit::WebReferrerPolicyNever:
     case WebKit::WebReferrerPolicyOrigin:
       net_referrer_policy = net::URLRequest::NEVER_CLEAR_REFERRER;
       break;
   }
   request->set_referrer_policy(net_referrer_policy);
 }
 
 COMPILE_ASSERT(std::numeric_limits<double>::has_quiet_NaN, has_quiet_NaN);
 
+#if defined(OS_LINUX) || defined(OS_ANDROID)
+size_t MemoryUsageKB() {
+  struct mallinfo minfo = mallinfo();
+  uint64_t mem_usage =
+#if defined(USE_TCMALLOC)
+      minfo.uordblks
+#else
+      (minfo.hblkhd + minfo.arena)
+#endif
+      >> 10;
+
+  v8::HeapStatistics stat;
+  v8::V8::GetHeapStatistics(&stat);
+  return mem_usage + (static_cast<uint64_t>(stat.total_heap_size()) >> 10);
+}
+#elif defined(OS_MACOSX)
+size_t MemoryUsageKB() {
+  scoped_ptr<base::ProcessMetrics> process_metrics(
+      // The default port provider is sufficient to get data for the current
+      // process.
+      base::ProcessMetrics::CreateProcessMetrics(
+          base::GetCurrentProcessHandle(), NULL));
+  return process_metrics->GetWorkingSetSize() >> 10;
+}
+#else
+size_t MemoryUsageKB() {
+  scoped_ptr<base::ProcessMetrics> process_metrics(
+      base::ProcessMetrics::CreateProcessMetrics(
+          base::GetCurrentProcessHandle()));
+  return process_metrics->GetPagefileUsage() >> 10;
+}
+#endif
+
 } // namespace webkit_glue