Move CrxFile, FileReader, ExtensionResource to src/extensions.

chrome/browser/extensions/extension_icon_manager.cc

Index: chrome/browser/extensions/extension_icon_manager.cc
diff --git a/chrome/browser/extensions/extension_icon_manager.cc b/chrome/browser/extensions/extension_icon_manager.cc
index 292d00b587717f911d06e82dfdfb383d94037283..a557f428367471e501d9b4a2c20138c197d2c303 100644
--- a/chrome/browser/extensions/extension_icon_manager.cc
+++ b/chrome/browser/extensions/extension_icon_manager.cc
@@ -12,7 +12,7 @@
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/extensions/extension_icon_set.h"
-#include "chrome/common/extensions/extension_resource.h"
+#include "extensions/common/extension_resource.h"
 #include "grit/theme_resources.h"
 #include "skia/ext/image_operations.h"
 #include "ui/base/resource/resource_bundle.h"
@@ -54,10 +54,11 @@ ExtensionIconManager::~ExtensionIconManager() {
 
 void ExtensionIconManager::LoadIcon(Profile* profile,
                                     const extensions::Extension* extension) {
-  ExtensionResource icon_resource = extensions::IconsInfo::GetIconResource(
-      extension,
-      extension_misc::EXTENSION_ICON_BITTY,
-      ExtensionIconSet::MATCH_BIGGER);
+  extensions::ExtensionResource icon_resource =
+      extensions::IconsInfo::GetIconResource(
+          extension,
+          extension_misc::EXTENSION_ICON_BITTY,
+          ExtensionIconSet::MATCH_BIGGER);
   if (!icon_resource.extension_root().empty()) {
     // Insert into pending_icons_ first because LoadImage can call us back
     // synchronously if the image is already cached.