Support sideloaded fonts via command line option for blink layout_tests

content/shell/browser/shell_content_browser_client.cc

Index: content/shell/browser/shell_content_browser_client.cc
diff --git a/content/shell/browser/shell_content_browser_client.cc b/content/shell/browser/shell_content_browser_client.cc
index 288b274456e67688907c8d67020d4151c6fdc5e2..d4394f3ef5b12bbd2557cced12490f4b99ae8f05 100644
--- a/content/shell/browser/shell_content_browser_client.cc
+++ b/content/shell/browser/shell_content_browser_client.cc
@@ -9,6 +9,7 @@
 #include "base/file_util.h"
 #include "base/files/file.h"
 #include "base/path_service.h"
+#include "base/strings/utf_string_conversions.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/resource_dispatcher_host.h"
 #include "content/public/browser/storage_partition.h"
@@ -47,6 +48,11 @@
 #include "content/public/common/content_descriptors.h"
 #endif
 
+#if defined(OS_WIN)
+#include "content/common/sandbox_win.h"
+#include "sandbox/win/src/sandbox.h"
+#endif
+
 namespace content {
 
 namespace {
@@ -225,6 +231,13 @@ void ShellContentBrowserClient::AppendExtraCommandLineSwitches(
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableLeakDetection))
     command_line->AppendSwitch(switches::kEnableLeakDetection);
+  if (CommandLine::ForCurrentProcess()->HasSwitch(
+        switches::kRegisterFontFiles)) {
+    command_line->AppendSwitchASCII(
+        switches::kRegisterFontFiles,
+        CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
+            switches::kRegisterFontFiles));
+  }
 }
 
 void ShellContentBrowserClient::OverrideWebkitPrefs(
@@ -321,6 +334,22 @@ void ShellContentBrowserClient::GetAdditionalMappedFilesForChildProcess(
 }
 #endif  // defined(OS_POSIX) && !defined(OS_MACOSX)
 
+#if defined(OS_WIN)
+void ShellContentBrowserClient::PreSpawnRenderer(sandbox::TargetPolicy* policy,
+                                                 bool* success) {
+  // Add sideloaded font files for testing. See also DIR_WINDOWS_FONTS
+  // addition in |StartSandboxedProcess|.
+  std::vector<std::string> font_files = GetSideloadFontFiles();
+  for (std::vector<std::string>::const_iterator i(font_files.begin());
+      i != font_files.end();
+      ++i) {
+    policy->AddRule(sandbox::TargetPolicy::SUBSYS_FILES,
+        sandbox::TargetPolicy::FILES_ALLOW_READONLY,
+        base::UTF8ToWide(*i).c_str());
+  }
+}
+#endif  // OS_WIN
+
 ShellBrowserContext* ShellContentBrowserClient::browser_context() {
   return shell_browser_main_parts_->browser_context();
 }