Add logic to switch to DirectWrite font proxy via field trial.

content/test/layouttest_support.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 "content/public/test/layouttest_support.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/callback.h"
@@ skipping 24 matching lines @@
 #include "third_party/WebKit/public/platform/WebGamepads.h"
 #include "third_party/WebKit/public/platform/modules/device_orientation/WebDeviceMotionData.h"
 #include "third_party/WebKit/public/platform/modules/device_orientation/WebDeviceOrientationData.h"
 #include "third_party/WebKit/public/web/WebHistoryItem.h"
 #include "third_party/WebKit/public/web/WebView.h"
 
 #if defined(OS_MACOSX)
 #include "content/browser/frame_host/popup_menu_helper_mac.h"
 #elif defined(OS_WIN)
 #include "content/common/font_warmup_win.h"
+#include "content/public/common/dwrite_font_platform_win.h"
 #include "third_party/WebKit/public/web/win/WebFontRendering.h"
 #include "third_party/skia/include/ports/SkFontMgr.h"
+#include "third_party/skia/include/ports/SkTypeface_win.h"
 #include "ui/gfx/win/direct_write.h"
 #endif
 
 using blink::WebBatteryStatus;
 using blink::WebDeviceMotionData;
 using blink::WebDeviceOrientationData;
 using blink::WebGamepad;
 using blink::WebGamepads;
 using blink::WebRect;
 using blink::WebSize;
@@ skipping 40 matching lines @@
 #if defined(OS_WIN)
 // DirectWrite only has access to %WINDIR%\Fonts by default. For developer
 // side-loading, support kRegisterFontFiles to allow access to additional fonts.
 void RegisterSideloadedTypefaces(SkFontMgr* fontmgr) {
   RenderThreadImpl::current()->EnsureWebKitInitialized();
   std::vector<std::string> files = switches::GetSideloadFontFiles();
   for (std::vector<std::string>::const_iterator i(files.begin());
        i != files.end();
        ++i) {
     SkTypeface* typeface = fontmgr->createFromFile(i->c_str());
-    DoPreSandboxWarmupForTypeface(typeface);
+    if (!ShouldUseDirectWriteFontProxyFieldTrial())
+      DoPreSandboxWarmupForTypeface(typeface);
     blink::WebFontRendering::addSideloadedFontForTesting(typeface);
   }
 }
 #endif  // OS_WIN
 
 }  // namespace
 
 void EnableWebTestProxyCreation(
     const base::Callback<void(RenderView*, test_runner::WebTestProxyBase*)>&
         callback) {
@@ skipping 49 matching lines @@
 void MockBatteryStatusChanged(const WebBatteryStatus& status) {
   RenderThreadImpl::current()
       ->blink_platform_impl()
       ->MockBatteryStatusChangedForTesting(status);
 }
 
 void EnableRendererLayoutTestMode() {
   RenderThreadImpl::current()->set_layout_test_mode(true);
 
 #if defined(OS_WIN)
-  if (gfx::win::ShouldUseDirectWrite())
-    RegisterSideloadedTypefaces(GetPreSandboxWarmupFontMgr());
+  if (gfx::win::ShouldUseDirectWrite()) {
+    if (ShouldUseDirectWriteFontProxyFieldTrial())
+      RegisterSideloadedTypefaces(SkFontMgr_New_DirectWrite());
+    else
+      RegisterSideloadedTypefaces(GetPreSandboxWarmupFontMgr());
+  }
 #endif
 }
 
 void EnableBrowserLayoutTestMode() {
 #if defined(OS_MACOSX)
   ImageTransportSurface::SetAllowOSMesaForTesting(true);
   PopupMenuHelper::DontShowPopupMenuForTesting();
 #endif
   RenderWidgetHostImpl::DisableResizeAckCheckForTesting();
 }
@@ skipping 265 matching lines @@
     result.append(
         DumpHistoryItem(entry->root_history_node(),
                         8,
                         index == current_index));
   }
   result.append("===============================================\n");
   return result;
 }
 
 }  // namespace content