DirectWrite Font Cache browser side hookup

content/browser/renderer_host/render_process_host_impl.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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 1036 matching lines @@
 
   GetContentClient()->browser()->AppendExtraCommandLineSwitches(
       command_line, GetID());
 
   if (IsPinchToZoomEnabled())
     command_line->AppendSwitch(switches::kEnablePinch);
 
 #if defined(OS_WIN)
   command_line->AppendSwitchASCII(switches::kDeviceScaleFactor,
                                   base::DoubleToString(gfx::GetDPIScale()));
+  command_line->AppendSwitchASCII(
+      switches::kFontCacheSharedMemSuffix,
+      base::UintToString(base::GetCurrentProcId()));
 #endif
 
   AppendCompositorCommandLineFlags(command_line);
 }
 
 void RenderProcessHostImpl::PropagateBrowserCommandLineToRenderer(
     const base::CommandLine& browser_cmd,
     base::CommandLine* renderer_cmd) const {
   // Propagate the following switches to the renderer command line (along
   // with any associated values) if present in the browser command line.
@@ skipping 1170 matching lines @@
 
 void RenderProcessHostImpl::DecrementWorkerRefCount() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DCHECK_GT(worker_ref_count_, 0);
   --worker_ref_count_;
   if (worker_ref_count_ == 0)
     Cleanup();
 }
 
 }  // namespace content