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

base/i18n/icu_util.cc

Index: base/i18n/icu_util.cc
diff --git a/base/i18n/icu_util.cc b/base/i18n/icu_util.cc
index 6001ea10d050e502b07b8c53b71c493a0e5956f9..7e9b6a2c8d21207b13bd2ffaf60764a06406c49b 100644
--- a/base/i18n/icu_util.cc
+++ b/base/i18n/icu_util.cc
@@ -55,6 +55,28 @@ bool g_check_called_once = true;
 #endif
 }
 
+
+#if defined(OS_ANDROID)
+bool InitializeICU(int data_fd) {

[jungshik at Google, 2014/06/05 23:30:57]

This should be no-op if DATA_STATIC is used.

[Feng Qian, 2014/06/06 17:40:31]

What about DATA_SHARED case? Would it be the same as InitializeICU()?

On 2014/06/05 23:30:57, Jungshik Shin wrote:

+#if !defined(NDEBUG)
+  DCHECK(!g_check_called_once || !g_called_once);
+  g_called_once = true;
+#endif
+
+  CR_DEFINE_STATIC_LOCAL(base::MemoryMappedFile, mapped_file, ());
+  if (!mapped_file.IsValid()) {
+    if (!mapped_file.Initialize(base::File(data_fd))) {
+      LOG(ERROR) << "Couldn't mmap icu data file";
+      return false;
+    }
+  }
+  UErrorCode err = U_ZERO_ERROR;
+  udata_setCommonData(const_cast<uint8*>(mapped_file.data()), &err);
+  return err == U_ZERO_ERROR;
+}
+#endif
+
+
 bool InitializeICU() {
 #if !defined(NDEBUG)
   DCHECK(!g_check_called_once || !g_called_once);