DirectWrite Font Cache browser side hookup
This part is mainly to hookup browser side for building and loading font cache.
In browser's postprofileinit if font cache already exists in user profile directory
then we load that and create a read only shared memory section. If cache is not there
then we spawn a Chrome utility process to build font cache, which will be used when browser restarts.
For details on how whole thing works please look at design document at https://goto.google.com/font-cache-design
BUG=406659
R=cpu, scottmg, ananta
Committed: https://crrev.com/5140a1f1ba5bd57d5c7d9af04ed3eb8ac83f487d
Cr-Commit-Position: refs/heads/master@{#304277}
Review URL: https://codereview.chromium.org/724633002
Cr-Commit-Position: refs/heads/master@{#304474}
diff --git a/chrome/browser/chrome_browser_main_win.cc b/chrome/browser/chrome_browser_main_win.cc
index 7ab56c55..77e9c22f 100644
--- a/chrome/browser/chrome_browser_main_win.cc
+++ b/chrome/browser/chrome_browser_main_win.cc
@@ -12,6 +12,7 @@
#include "base/command_line.h"
#include "base/environment.h"
#include "base/files/file_path.h"
+#include "base/files/file_util.h"
#include "base/i18n/rtl.h"
#include "base/memory/scoped_ptr.h"
#include "base/metrics/histogram.h"
@@ -36,6 +37,7 @@
#include "chrome/common/chrome_constants.h"
#include "chrome/common/chrome_result_codes.h"
#include "chrome/common/chrome_switches.h"
+#include "chrome/common/chrome_utility_messages.h"
#include "chrome/common/chrome_version_info.h"
#include "chrome/common/env_vars.h"
#include "chrome/common/terminate_on_heap_corruption_experiment_win.h"
@@ -47,7 +49,10 @@
#include "chrome/installer/util/l10n_string_util.h"
#include "chrome/installer/util/shell_util.h"
#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/utility_process_host.h"
+#include "content/public/browser/utility_process_host_client.h"
#include "content/public/common/content_switches.h"
+#include "content/public/common/dwrite_font_platform_win.h"
#include "content/public/common/main_function_params.h"
#include "installer_util_strings/installer_util_strings.h"
#include "ui/base/cursor/cursor_loader_win.h"
@@ -57,6 +62,7 @@
#include "ui/base/win/message_box_win.h"
#include "ui/gfx/platform_font_win.h"
#include "ui/gfx/switches.h"
+#include "ui/gfx/win/direct_write.h"
#include "ui/strings/grit/app_locale_settings.h"
#if defined(GOOGLE_CHROME_BUILD)
@@ -101,6 +107,14 @@
return ::GetEnvironmentVariableA(chrome::kSafeModeEnvVar, NULL, 0) != 0;
}
+void ExecuteFontCacheBuildTask(const base::FilePath& path) {
+ base::WeakPtr<content::UtilityProcessHost> utility_process_host(
+ content::UtilityProcessHost::Create(NULL, NULL)->AsWeakPtr());
+ utility_process_host->DisableSandbox();
+ utility_process_host->Send(
+ new ChromeUtilityHostMsg_BuildDirectWriteFontCache(path));
+}
+
} // namespace
void ShowCloseBrowserFirstMessageBox() {
@@ -248,6 +262,24 @@
MB_OK | MB_ICONERROR | MB_TOPMOST);
}
+void ChromeBrowserMainPartsWin::PostProfileInit() {
+ ChromeBrowserMainParts::PostProfileInit();
+
+ // DirectWrite support is mainly available Windows 7 and up.
+ if (gfx::win::ShouldUseDirectWrite()) {
+ base::FilePath path(
+ profile()->GetPath().AppendASCII(content::kFontCacheSharedSectionName));
+ // This function will create a read only section if cache file exists
+ // otherwise it will spawn utility process to build cache file, which will
+ // be used during next browser start/postprofileinit.
+ if (!content::LoadFontCache(path)) {
+ content::BrowserThread::PostTask(
+ content::BrowserThread::IO, FROM_HERE,
+ base::Bind(ExecuteFontCacheBuildTask, path));
+ }
+ }
+}
+
void ChromeBrowserMainPartsWin::PostBrowserStart() {
ChromeBrowserMainParts::PostBrowserStart();
