Expose a method to access amount of memory used by the current process.

webkit/glue/webkitclient_impl.cc

 // Copyright (c) 2009 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 <math.h>
 #include "config.h"
 
 #include "FrameView.h"
 #include "ScrollView.h"
 #include <wtf/Assertions.h>
 #undef LOG
 
 #include "webkit/glue/webkitclient_impl.h"
 
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/message_loop.h"
+#include "base/process_util.h"
 #include "base/platform_file.h"
 #include "base/stats_counters.h"
 #include "base/string_util.h"
 #include "base/trace_event.h"
 #include "grit/webkit_resources.h"
 #include "grit/webkit_strings.h"
 #include "net/base/net_util.h"
 #include "webkit/api/public/WebCookie.h"
 #include "webkit/api/public/WebCursorInfo.h"
 #include "webkit/api/public/WebData.h"
@@ skipping 328 matching lines @@
 }
 
 WebKit::WebString WebKitClientImpl::signedPublicKeyAndChallengeString(
     unsigned key_size_index,
     const WebKit::WebString& challenge,
     const WebKit::WebURL& url) {
   NOTREACHED();
   return WebKit::WebString();
 }
 
+int WebKitClientImpl::memoryUsageMB() {
+  using base::ProcessMetrics;
+  static ProcessMetrics* process_metrics =
+      ProcessMetrics::CreateProcessMetrics(base::GetCurrentProcessHandle());
+  DCHECK(process_metrics);
+  return process_metrics->GetPagefileUsage() >> 20;
+}
+
 bool WebKitClientImpl::fileExists(const WebKit::WebString& path) {
   FilePath::StringType file_path = webkit_glue::WebStringToFilePathString(path);
   return file_util::PathExists(FilePath(file_path));
 }
 
 bool WebKitClientImpl::deleteFile(const WebKit::WebString& path) {
   NOTREACHED();
   return false;
 }
 
@@ skipping 168 matching lines @@
   return file_util::DirectoryExists(file_path);
 }
 
 WebKit::WebURL WebKitClientImpl::filePathToURL(const WebKit::WebString& path) {
   FilePath file_path(webkit_glue::WebStringToFilePathString(path));
   GURL file_url = net::FilePathToFileURL(file_path);
   return webkit_glue::KURLToWebURL(webkit_glue::GURLToKURL(file_url));
 }
 
 }  // namespace webkit_glue