Moved render_font to a common location to share with other content.

content/renderer/render_font_warmup_win.cc

Index: content/renderer/render_font_warmup_win.cc
diff --git a/content/renderer/render_font_warmup_win.cc b/content/renderer/render_font_warmup_win.cc
deleted file mode 100644
index f90bee1962f2752d412abf97d80230ea68b6e147..0000000000000000000000000000000000000000
--- a/content/renderer/render_font_warmup_win.cc
+++ /dev/null
@@ -1,204 +0,0 @@
-// Copyright 2014 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/renderer/render_font_warmup_win.h"
-
-#include <dwrite.h>
-
-#include "base/debug/alias.h"
-#include "base/logging.h"
-#include "base/win/iat_patch_function.h"
-#include "base/win/windows_version.h"
-#include "content/public/common/dwrite_font_platform_win.h"
-#include "third_party/WebKit/public/web/win/WebFontRendering.h"
-#include "third_party/skia/include/core/SkPaint.h"
-#include "third_party/skia/include/ports/SkFontMgr.h"
-#include "third_party/skia/include/ports/SkTypeface_win.h"
-
-namespace content {
-
-namespace {
-
-SkFontMgr* g_warmup_fontmgr = NULL;
-
-base::win::IATPatchFunction g_iat_patch_open_sc_manager;
-base::win::IATPatchFunction g_iat_patch_close_service_handle;
-base::win::IATPatchFunction g_iat_patch_open_service;
-base::win::IATPatchFunction g_iat_patch_start_service;
-base::win::IATPatchFunction g_iat_patch_nt_connect_port;
-
-// These are from ntddk.h
-#if !defined(STATUS_ACCESS_DENIED)
-#define STATUS_ACCESS_DENIED   ((NTSTATUS)0xC0000022L)
-#endif
-
-typedef LONG NTSTATUS;
-
-SC_HANDLE WINAPI OpenSCManagerWPatch(const wchar_t* machine_name,
-                                     const wchar_t* database_name,
-                                     DWORD access_mask) {
-  ::SetLastError(0);
-  return reinterpret_cast<SC_HANDLE>(0xdeadbeef);
-}
-
-SC_HANDLE WINAPI OpenServiceWPatch(SC_HANDLE sc_manager,
-                                   const wchar_t* service_name,
-                                   DWORD access_mask) {
-  ::SetLastError(0);
-  return reinterpret_cast<SC_HANDLE>(0xdeadbabe);
-}
-
-BOOL WINAPI CloseServiceHandlePatch(SC_HANDLE service_handle) {
-  if (service_handle != reinterpret_cast<SC_HANDLE>(0xdeadbabe) &&
-      service_handle != reinterpret_cast<SC_HANDLE>(0xdeadbeef))
-    CHECK(false);
-  ::SetLastError(0);
-  return TRUE;
-}
-
-BOOL WINAPI StartServiceWPatch(SC_HANDLE service,
-                               DWORD args,
-                               const wchar_t** arg_vectors) {
-  if (service != reinterpret_cast<SC_HANDLE>(0xdeadbabe))
-    CHECK(false);
-  ::SetLastError(ERROR_ACCESS_DENIED);
-  return FALSE;
-}
-
-NTSTATUS WINAPI NtALpcConnectPortPatch(HANDLE* port_handle,
-                                       void* port_name,
-                                       void* object_attribs,
-                                       void* port_attribs,
-                                       DWORD flags,
-                                       void* server_sid,
-                                       void* message,
-                                       DWORD* buffer_length,
-                                       void* out_message_attributes,
-                                       void* in_message_attributes,
-                                       void* time_out) {
-  return STATUS_ACCESS_DENIED;
-}
-
-// Directwrite connects to the font cache service to retrieve information about
-// fonts installed on the system etc. This works well outside the sandbox and
-// within the sandbox as long as the lpc connection maintained by the current
-// process with the font cache service remains valid. It appears that there
-// are cases when this connection is dropped after which directwrite is unable
-// to connect to the font cache service which causes problems with characters
-// disappearing.
-// Directwrite has fallback code to enumerate fonts if it is unable to connect
-// to the font cache service. We need to intercept the following APIs to
-// ensure that it does not connect to the font cache service.
-// NtALpcConnectPort
-// OpenSCManagerW
-// OpenServiceW
-// StartServiceW
-// CloseServiceHandle.
-// These are all IAT patched.
-void PatchServiceManagerCalls() {
-  static bool is_patched = false;
-  if (is_patched)
-    return;
-  const char* service_provider_dll =
-      (base::win::GetVersion() >= base::win::VERSION_WIN8 ?
-          "api-ms-win-service-management-l1-1-0.dll" : "advapi32.dll");
-
-  is_patched = true;
-
-  DWORD patched = g_iat_patch_open_sc_manager.Patch(L"dwrite.dll",
-      service_provider_dll, "OpenSCManagerW", OpenSCManagerWPatch);
-  DCHECK(patched == 0);
-
-  patched = g_iat_patch_close_service_handle.Patch(L"dwrite.dll",
-      service_provider_dll, "CloseServiceHandle", CloseServiceHandlePatch);
-  DCHECK(patched == 0);
-
-  patched = g_iat_patch_open_service.Patch(L"dwrite.dll",
-      service_provider_dll, "OpenServiceW", OpenServiceWPatch);
-  DCHECK(patched == 0);
-
-  patched = g_iat_patch_start_service.Patch(L"dwrite.dll",
-      service_provider_dll, "StartServiceW", StartServiceWPatch);
-  DCHECK(patched == 0);
-
-  patched = g_iat_patch_nt_connect_port.Patch(L"dwrite.dll",
-      "ntdll.dll", "NtAlpcConnectPort", NtALpcConnectPortPatch);
-  DCHECK(patched == 0);
-}
-
-// Windows-only DirectWrite support. These warm up the DirectWrite paths
-// before sandbox lock down to allow Skia access to the Font Manager service.
-void CreateDirectWriteFactory(IDWriteFactory** factory) {
-  typedef decltype(DWriteCreateFactory)* DWriteCreateFactoryProc;
-  HMODULE dwrite_dll = LoadLibraryW(L"dwrite.dll");
-  // TODO(scottmg): Temporary code to track crash in http://crbug.com/387867.
-  if (!dwrite_dll) {
-    DWORD load_library_get_last_error = GetLastError();
-    base::debug::Alias(&dwrite_dll);
-    base::debug::Alias(&load_library_get_last_error);
-    CHECK(false);
-  }
-
-  PatchServiceManagerCalls();
-
-  DWriteCreateFactoryProc dwrite_create_factory_proc =
-      reinterpret_cast<DWriteCreateFactoryProc>(
-          GetProcAddress(dwrite_dll, "DWriteCreateFactory"));
-  // TODO(scottmg): Temporary code to track crash in http://crbug.com/387867.
-  if (!dwrite_create_factory_proc) {
-    DWORD get_proc_address_get_last_error = GetLastError();
-    base::debug::Alias(&dwrite_create_factory_proc);
-    base::debug::Alias(&get_proc_address_get_last_error);
-    CHECK(false);
-  }
-  CHECK(SUCCEEDED(
-      dwrite_create_factory_proc(DWRITE_FACTORY_TYPE_ISOLATED,
-                                 __uuidof(IDWriteFactory),
-                                 reinterpret_cast<IUnknown**>(factory))));
-}
-
-HRESULT STDMETHODCALLTYPE StubFontCollection(IDWriteFactory* factory,
-                                             IDWriteFontCollection** col,
-                                             BOOL checkUpdates) {
-  // We always return pre-created font collection from here.
-  IDWriteFontCollection* custom_collection = GetCustomFontCollection(factory);
-  DCHECK(custom_collection != NULL);
-  *col = custom_collection;
-  return S_OK;
-}
-
-void PatchDWriteFactory(IDWriteFactory* factory) {
-  const unsigned int kGetSystemFontCollectionVTableIndex = 3;
-
-  PROC* vtable = *reinterpret_cast<PROC**>(factory);
-  PROC* function_ptr = &vtable[kGetSystemFontCollectionVTableIndex];
-  void* stub_function = &StubFontCollection;
-  base::win::ModifyCode(function_ptr, &stub_function, sizeof(PROC));
-}
-
-}  // namespace
-
-void DoPreSandboxWarmupForTypeface(SkTypeface* typeface) {
-  SkPaint paint_warmup;
-  paint_warmup.setTypeface(typeface);
-  wchar_t glyph = L'S';
-  paint_warmup.measureText(&glyph, 2);
-}
-
-SkFontMgr* GetPreSandboxWarmupFontMgr() {
-  if (!g_warmup_fontmgr) {
-    IDWriteFactory* factory;
-    CreateDirectWriteFactory(&factory);
-
-    GetCustomFontCollection(factory);
-
-    PatchDWriteFactory(factory);
-
-    blink::WebFontRendering::setDirectWriteFactory(factory);
-    g_warmup_fontmgr = SkFontMgr_New_DirectWrite(factory);
-  }
-  return g_warmup_fontmgr;
-}
-
-}  // namespace content