Revert "Show a warning message if the cache might not be cleared correctly between runs."

This reverts commit f98a0891c5baa2bc173fd93f22c18d5686d2c810 / revision 50623.

Review URL: http://codereview.chromium.org/2856015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@50627 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 0 insertions, 27 deletions

diff --git a/chrome/common/extensions/docs/examples/extensions/benchmark/background.html b/chrome/common/extensions/docs/examples/extensions/benchmark/background.html
index c560e11..d7af961 100755..100644
--- a/chrome/common/extensions/docs/examples/extensions/benchmark/background.html
+++ b/chrome/common/extensions/docs/examples/extensions/benchmark/background.html
@@ -322,20 +322,6 @@ chrome.extension.onConnect.addListener(function(port) {
 });
 
 function run() {
-  if (window.clearCache) {
-    // Show a warning if we will try to clear the cache between runs
-    // but will also be reusing the same WebKit instance (i.e. Chrome
-    // is in single-process mode, or 'Use New Tabs' is turned off)
-    // because the WebKit cache might not get completely cleared between runs.
-    if (chrome.benchmarking.isSingleProcess()) {
-      alert("Warning: the WebKit cache may not be cleared correctly " +
-            "between runs because Chrome is running in single-process mode.");
-    } else if (!window.useNewTabs) {
-      alert("Warning: the WebKit cache may not be cleared correctly " +
-            "between runs because 'Use New Tabs Per Page' is turned off.");
-    }
-  }
-
   var urls = testUrl.split(",");
   for (var i = 0; i < urls.length; i++) {
     var benchmark = new Benchmark();
diff --git a/webkit/extensions/v8/benchmarking_extension.cc b/webkit/extensions/v8/benchmarking_extension.cc
index 8eb0f00..362a928 100644
--- a/webkit/extensions/v8/benchmarking_extension.cc
+++ b/webkit/extensions/v8/benchmarking_extension.cc
@@ -2,9 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "base/command_line.h"
 #include "base/stats_table.h"
-#include "chrome/common/chrome_switches.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebCache.h"
 #include "webkit/extensions/v8/benchmarking_extension.h"
 #include "webkit/glue/webkit_glue.h"
@@ -37,10 +35,6 @@ class BenchmarkingWrapper : public v8::Extension {
         "  native function GetCounter();"
         "  return GetCounter(name);"
         "};"
-        "chrome.benchmarking.isSingleProcess = function() {"
-        "  native function IsSingleProcess();"
-        "  return IsSingleProcess();"
-        "};"
         ) {}
 
   virtual v8::Handle<v8::FunctionTemplate> GetNativeFunction(
@@ -51,8 +45,6 @@ class BenchmarkingWrapper : public v8::Extension {
       return v8::FunctionTemplate::New(ClearCache);
     } 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);
     }
     return v8::Handle<v8::FunctionTemplate>();
   }
@@ -81,11 +73,6 @@ class BenchmarkingWrapper : public v8::Extension {
     int counter = StatsTable::current()->GetCounterValue(name);
     return v8::Integer::New(counter);
   }
-
-  static v8::Handle<v8::Value> IsSingleProcess(const v8::Arguments& args) {
-    return v8::Boolean::New(CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kSingleProcess));
-  }
 };
 
 v8::Extension* BenchmarkingExtension::Get() {