Relanding this as the previous attempt failed due to build errors.

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 <mlang.h>
 #include <objidl.h>
 #elif defined(OS_POSIX) && !defined(OS_MACOSX)
@@ skipping 66 matching lines @@
 static const char kDataUrlPattern[] = "data:";
 static const std::string::size_type kDataUrlPatternSize =
     arraysize(kDataUrlPattern) - 1;
 static const char kFileTestPrefix[] = "(file test):";
 
 //------------------------------------------------------------------------------
 // webkit_glue impl:
 
 namespace webkit_glue {
 
-// Global variable used by the plugin quirk "die after unload".
-bool g_forcefully_terminate_plugin_process = false;
-
 void SetJavaScriptFlags(const std::string& str) {
   v8::V8::SetFlagsFromString(str.data(), static_cast<int>(str.size()));
 }
 
 void EnableWebCoreLogChannels(const std::string& channels) {
   if (channels.empty())
     return;
   base::StringTokenizer t(channels, ", ");
   while (t.GetNext()) {
     WebKit::enableLogChannel(t.token().c_str());
@@ skipping 53 matching lines @@
     web_file_info->modificationTime = std::numeric_limits<double>::quiet_NaN();
   else
     web_file_info->modificationTime = file_info.last_modified.ToDoubleT();
   web_file_info->length = file_info.size;
   if (file_info.is_directory)
     web_file_info->type = WebKit::WebFileInfo::TypeDirectory;
   else
     web_file_info->type = WebKit::WebFileInfo::TypeFile;
 }
 
-void SetForcefullyTerminatePluginProcess(bool value) {
-  g_forcefully_terminate_plugin_process = value;
-}
-
-bool ShouldForcefullyTerminatePluginProcess() {
-  return g_forcefully_terminate_plugin_process;
-}
-
 WebCanvas* ToWebCanvas(skia::PlatformCanvas* canvas) {
   return canvas;
 }
 
 int GetGlyphPageCount() {
   return WebGlyphCache::pageCount();
 }
 
 std::string GetInspectorProtocolVersion() {
   return WebDevToolsAgent::inspectorProtocolVersion().utf8();
@@ skipping 58 matching lines @@
           base::GetCurrentProcessHandle()));
   return process_metrics->GetPagefileUsage() >> 10;
 }
 #endif
 
 double ZoomFactorToZoomLevel(double factor) {
   return WebView::zoomFactorToZoomLevel(factor);
 }
 
 } // namespace webkit_glue