[ICU] Avoid reading ICU data files in render process.

content/app/content_main_runner.cc

Index: content/app/content_main_runner.cc
diff --git a/content/app/content_main_runner.cc b/content/app/content_main_runner.cc
index 8c767321132a4e139bebbc9c7303906a1dda3410..80041b4a984860d14bd0a9957dbe17eab1fb6a23 100644
--- a/content/app/content_main_runner.cc
+++ b/content/app/content_main_runner.cc
@@ -50,6 +50,10 @@
 #include "ui/base/ui_base_paths.h"
 #include "ui/base/ui_base_switches.h"
 
+#if defined(OS_ANDROID)
+#include "content/public/common/content_descriptors.h"
+#endif
+
 #if defined(USE_TCMALLOC)
 #include "third_party/tcmalloc/chromium/src/gperftools/malloc_extension.h"
 #if defined(TYPE_PROFILING)
@@ -703,7 +707,20 @@ class ContentMainRunnerImpl : public ContentMainRunner {
     RegisterPathProvider();
     RegisterContentSchemes(true);
 
+#if defined(OS_ANDROID)
+  if (process_type.empty()) {
+    // Browser process loads ICU data using file names.
     CHECK(base::i18n::InitializeICU());
+  } else {
+    // Render processes load ICU data using file descriptor.
+    int icu_data_fd = base::GlobalDescriptors::GetInstance()->MaybeGet(
+        kAndroidICUDataDescriptor);
+    CHECK(icu_data_fd != -1);
+    CHECK(base::i18n::InitializeICU(icu_data_fd));
+  }
+#else
+    CHECK(base::i18n::InitializeICU());
+#endif
 
     InitializeStatsTable(command_line);