Simplify WebUI data sources. Currently WebUI data sources implement a URLDataSourceDelegate interfa…

chrome/browser/ui/webui/chrome_url_data_manager.cc

Index: chrome/browser/ui/webui/chrome_url_data_manager.cc
===================================================================
--- chrome/browser/ui/webui/chrome_url_data_manager.cc	(revision 176942)
+++ chrome/browser/ui/webui/chrome_url_data_manager.cc	(working copy)
@@ -7,32 +7,19 @@
 #include <vector>
 
 #include "base/bind.h"
-#include "base/i18n/rtl.h"
 #include "base/lazy_instance.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/string_util.h"
 #include "base/synchronization/lock.h"
-#include "base/values.h"
 #include "chrome/browser/net/chrome_url_request_context.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/webui/chrome_url_data_manager_factory.h"
 #include "chrome/browser/ui/webui/chrome_url_data_manager_backend.h"
 #include "content/public/browser/browser_thread.h"
-#include "content/public/browser/url_data_source_delegate.h"
-#include "grit/platform_locale_settings.h"
-#include "ui/base/l10n/l10n_util.h"
+#include "content/public/browser/url_data_source.h"
 
-#if defined (TOOLKIT_GTK)
-#include "ui/base/resource/resource_bundle.h"
-#include "ui/gfx/font.h"
-#endif
-
-#if defined(OS_WIN)
-#include "base/win/windows_version.h"
-#endif
-
 using content::BrowserThread;
 
 static base::LazyInstance<base::Lock>::Leaky
@@ -45,7 +32,7 @@
 // Invoked on the IO thread to do the actual adding of the DataSource.
 static void AddDataSourceOnIOThread(
     const base::Callback<ChromeURLDataManagerBackend*(void)>& backend,
-    scoped_refptr<URLDataSource> data_source) {
+    scoped_refptr<URLDataSourceImpl> data_source) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   backend.Run()->AddDataSource(data_source.get());
 }
@@ -58,7 +45,7 @@
 ChromeURLDataManager::~ChromeURLDataManager() {
 }
 
-void ChromeURLDataManager::AddDataSource(URLDataSource* source) {
+void ChromeURLDataManager::AddDataSource(URLDataSourceImpl* source) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
@@ -81,7 +68,8 @@
 }
 
 // static
-void ChromeURLDataManager::DeleteDataSource(const URLDataSource* data_source) {
+void ChromeURLDataManager::DeleteDataSource(
+    const URLDataSourceImpl* data_source) {
   // Invoked when a DataSource is no longer referenced and needs to be deleted.
   if (BrowserThread::CurrentlyOn(BrowserThread::UI)) {
     // We're on the UI thread, delete right away.
@@ -110,18 +98,20 @@
 // static
 void ChromeURLDataManager::AddDataSource(
     Profile* profile,
-    content::URLDataSourceDelegate* delegate) {
-  if (!delegate->url_data_source_) {
-  delegate->url_data_source_ = new URLDataSource(
-      delegate->GetSource(), delegate);
-  }
+    content::URLDataSource* source) {
   ChromeURLDataManagerFactory::GetForProfile(profile)->AddDataSource(
-      delegate->url_data_source_);
+      new URLDataSourceImpl(source->GetSource(), source));
 }
 
 // static
+void ChromeURLDataManager::AddDataSourceImpl(Profile* profile,
+                                             URLDataSourceImpl* source) {
+  ChromeURLDataManagerFactory::GetForProfile(profile)->AddDataSource(source);
+}
+
+// static
 bool ChromeURLDataManager::IsScheduledForDeletion(
-    const URLDataSource* data_source) {
+    const URLDataSourceImpl* data_source) {
   base::AutoLock lock(g_delete_lock.Get());
   if (!data_sources_)
     return false;
@@ -129,17 +119,17 @@
       data_sources_->end();
 }
 
-URLDataSource::URLDataSource(const std::string& source_name,
-                             content::URLDataSourceDelegate* delegate)
+URLDataSourceImpl::URLDataSourceImpl(const std::string& source_name,
+                                     content::URLDataSource* source)
     : source_name_(source_name),
       backend_(NULL),
-      delegate_(delegate) {
+      source_(source) {
 }
 
-URLDataSource::~URLDataSource() {
+URLDataSourceImpl::~URLDataSourceImpl() {
 }
 
-void URLDataSource::SendResponse(
+void URLDataSourceImpl::SendResponse(
     int request_id,
     base::RefCountedMemory* bytes) {
   // Take a ref-pointer on entry so byte->Release() will always get called.
@@ -160,40 +150,11 @@
   }
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
-      base::Bind(&URLDataSource::SendResponseOnIOThread, this, request_id,
+      base::Bind(&URLDataSourceImpl::SendResponseOnIOThread, this, request_id,
                  bytes_ptr));
 }
 
-// static
-void URLDataSource::SetFontAndTextDirection(
-    DictionaryValue* localized_strings) {
-  int web_font_family_id = IDS_WEB_FONT_FAMILY;
-  int web_font_size_id = IDS_WEB_FONT_SIZE;
-#if defined(OS_WIN)
-  // Vary font settings for Windows XP.
-  if (base::win::GetVersion() < base::win::VERSION_VISTA) {
-    web_font_family_id = IDS_WEB_FONT_FAMILY_XP;
-    web_font_size_id = IDS_WEB_FONT_SIZE_XP;
-  }
-#endif
-
-  std::string font_family = l10n_util::GetStringUTF8(web_font_family_id);
-
-#if defined(TOOLKIT_GTK)
-  // Use the system font on Linux/GTK. Keep the hard-coded font families as
-  // backup in case for some crazy reason this one isn't available.
-  font_family = ui::ResourceBundle::GetSharedInstance().GetFont(
-      ui::ResourceBundle::BaseFont).GetFontName() + ", " + font_family;
-#endif
-
-  localized_strings->SetString("fontfamily", font_family);
-  localized_strings->SetString("fontsize",
-      l10n_util::GetStringUTF8(web_font_size_id));
-  localized_strings->SetString("textdirection",
-      base::i18n::IsRTL() ? "rtl" : "ltr");
-}
-
-void URLDataSource::SendResponseOnIOThread(
+void URLDataSourceImpl::SendResponseOnIOThread(
     int request_id,
     scoped_refptr<base::RefCountedMemory> bytes) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));