Move the ViewHostMsg_ClearPredictorCache out of content into chrome as this functionality is chro...

webkit/extensions/v8/benchmarking_extension.cc

-// Copyright (c) 2011 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/extensions/v8/benchmarking_extension.h"
-
-#include "base/metrics/stats_table.h"
-#include "base/time.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebCache.h"
-#include "v8/include/v8.h"
-#include "webkit/glue/webkit_glue.h"
-
-using WebKit::WebCache;
-
-const char kBenchmarkingExtensionName[] = "v8/Benchmarking";
-
-namespace extensions_v8 {
-
-class BenchmarkingWrapper : public v8::Extension {
- public:
-  BenchmarkingWrapper() :
-      v8::Extension(kBenchmarkingExtensionName,
-        "if (typeof(chrome) == 'undefined') {"
-        "  chrome = {};"
-        "};"
-        "if (typeof(chrome.benchmarking) == 'undefined') {"
-        "  chrome.benchmarking = {};"
-        "};"
-        "chrome.benchmarking.clearCache = function(preserve_ssl_entries) {"
-        "  native function ClearCache();"
-        "  ClearCache(preserve_ssl_entries);"
-        "};"
-        "chrome.benchmarking.clearHostResolverCache = function() {"
-        "  native function ClearHostResolverCache();"
-        "  ClearHostResolverCache();"
-        "};"
-        "chrome.benchmarking.clearPredictorCache = function() {"
-        "  native function ClearPredictorCache();"
-        "  ClearPredictorCache();"
-        "};"
-        "chrome.benchmarking.closeConnections = function() {"
-        "  native function CloseConnections();"
-        "  CloseConnections();"
-        "};"
-        "chrome.benchmarking.counter = function(name) {"
-        "  native function GetCounter();"
-        "  return GetCounter(name);"
-        "};"
-        "chrome.benchmarking.enableSpdy = function(name) {"
-        "  native function EnableSpdy();"
-        "  EnableSpdy(name);"
-        "};"
-        "chrome.benchmarking.isSingleProcess = function() {"
-        "  native function IsSingleProcess();"
-        "  return IsSingleProcess();"
-        "};"
-        "chrome.Interval = function() {"
-        "  var start_ = 0;"
-        "  var stop_ = 0;"
-        "  native function HiResTime();"
-        "  this.start = function() {"
-        "    stop_ = 0;"
-        "    start_ = HiResTime();"
-        "  };"
-        "  this.stop = function() {"
-        "    stop_ = HiResTime();"
-        "    if (start_ == 0)"
-        "      stop_ = 0;"
-        "  };"
-        "  this.microseconds = function() {"
-        "    var stop = stop_;"
-        "    if (stop == 0 && start_ != 0)"
-        "      stop = HiResTime();"
-        "    return Math.ceil(stop - start_);"
-        "  };"
-        "}"
-        ) {}
-
-  virtual v8::Handle<v8::FunctionTemplate> GetNativeFunction(
-      v8::Handle<v8::String> name) {
-    if (name->Equals(v8::String::New("CloseConnections"))) {
-      return v8::FunctionTemplate::New(CloseConnections);
-    } else if (name->Equals(v8::String::New("ClearCache"))) {
-      return v8::FunctionTemplate::New(ClearCache);
-    } else if (name->Equals(v8::String::New("ClearHostResolverCache"))) {
-      return v8::FunctionTemplate::New(ClearHostResolverCache);
-    } else if (name->Equals(v8::String::New("ClearPredictorCache"))) {
-      return v8::FunctionTemplate::New(ClearPredictorCache);
-    } else if (name->Equals(v8::String::New("EnableSpdy"))) {
-      return v8::FunctionTemplate::New(EnableSpdy);
-    } else if (name->Equals(v8::String::New("GetCounter"))) {
-      return v8::FunctionTemplate::New(GetCounter);
-    } else if (name->Equals(v8::String::New("IsSingleProcess"))) {
-      return v8::FunctionTemplate::New(IsSingleProcess);
-    } else if (name->Equals(v8::String::New("HiResTime"))) {
-      return v8::FunctionTemplate::New(HiResTime);
-    }
-
-    return v8::Handle<v8::FunctionTemplate>();
-  }
-
-  static v8::Handle<v8::Value> CloseConnections(const v8::Arguments& args) {
-    webkit_glue::CloseCurrentConnections();
-    return v8::Undefined();
-  }
-
-  static v8::Handle<v8::Value> ClearCache(const v8::Arguments& args) {
-    bool preserve_ssl_host_entries = false;
-    if (args.Length() && args[0]->IsBoolean())
-      preserve_ssl_host_entries = args[0]->BooleanValue();
-    webkit_glue::ClearCache(preserve_ssl_host_entries);
-    WebCache::clear();
-    return v8::Undefined();
-  }
-
-  static v8::Handle<v8::Value> ClearHostResolverCache(
-      const v8::Arguments& args) {
-    webkit_glue::ClearHostResolverCache();
-    return v8::Undefined();
-  }
-
-  static v8::Handle<v8::Value> ClearPredictorCache(
-      const v8::Arguments& args) {
-    webkit_glue::ClearPredictorCache();
-    return v8::Undefined();
-  }
-
-  static v8::Handle<v8::Value> EnableSpdy(const v8::Arguments& args) {
-    if (!args.Length() || !args[0]->IsBoolean())
-      return v8::Undefined();
-
-    webkit_glue::EnableSpdy(args[0]->BooleanValue());
-    return v8::Undefined();
-  }
-
-  static v8::Handle<v8::Value> GetCounter(const v8::Arguments& args) {
-    if (!args.Length() || !args[0]->IsString() || !base::StatsTable::current())
-      return v8::Undefined();
-
-    // Extract the name argument
-    char name[256];
-    name[0] = 'c';
-    name[1] = ':';
-    args[0]->ToString()->WriteAscii(&name[2], 0, sizeof(name) - 3);
-
-    int counter = base::StatsTable::current()->GetCounterValue(name);
-    return v8::Integer::New(counter);
-  }
-
-  static v8::Handle<v8::Value> IsSingleProcess(const v8::Arguments& args) {
-    return v8::Boolean::New(webkit_glue::IsSingleProcess());
-  }
-
-  static v8::Handle<v8::Value> HiResTime(const v8::Arguments& args) {
-    return v8::Number::New(
-        static_cast<double>(base::TimeTicks::HighResNow().ToInternalValue()));
-  }
-};
-
-v8::Extension* BenchmarkingExtension::Get() {
-  return new BenchmarkingWrapper();
-}
-
-}  // namespace extensions_v8