Extensions: Move id_util functions to crx_file component.

chrome/browser/themes/browser_theme_pack.cc

Index: chrome/browser/themes/browser_theme_pack.cc
diff --git a/chrome/browser/themes/browser_theme_pack.cc b/chrome/browser/themes/browser_theme_pack.cc
index d67b15219801cbe5bc61a28742fe73e9f6c342bc..2c9530241ab8eb61d9e4765249908444cb478df6 100644
--- a/chrome/browser/themes/browser_theme_pack.cc
+++ b/chrome/browser/themes/browser_theme_pack.cc
@@ -18,8 +18,8 @@
 #include "base/values.h"
 #include "chrome/browser/themes/theme_properties.h"
 #include "chrome/common/extensions/manifest_handlers/theme_handler.h"
+#include "components/crx_file/id_util.h"
 #include "content/public/browser/browser_thread.h"
-#include "extensions/common/id_util.h"
 #include "grit/theme_resources.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "ui/base/resource/data_pack.h"
@@ -724,9 +724,8 @@ scoped_refptr<BrowserThemePack> BrowserThemePack::BuildFromDataPack(
   }
   // TODO(erg): Check endianess once DataPack works on the other endian.
   std::string theme_id(reinterpret_cast<char*>(pack->header_->theme_id),
-                       extensions::id_util::kIdSize);
-  std::string truncated_id =
-      expected_id.substr(0, extensions::id_util::kIdSize);
+                       crx_file::id_util::kIdSize);
+  std::string truncated_id = expected_id.substr(0, crx_file::id_util::kIdSize);
   if (theme_id != truncated_id) {
     DLOG(ERROR) << "Wrong id: " << theme_id << " vs " << expected_id;
     return NULL;
@@ -953,7 +952,7 @@ void BrowserThemePack::BuildHeader(const Extension* extension) {
   header_->little_endian = 1;
 
   const std::string& id = extension->id();
-  memcpy(header_->theme_id, id.c_str(), extensions::id_util::kIdSize);
+  memcpy(header_->theme_id, id.c_str(), crx_file::id_util::kIdSize);
 }
 
 void BrowserThemePack::BuildTintsFromJSON(