Consolidate icon loading on ChromeOS

chrome/browser/ui/webui/fileicon_source_chromeos.cc

Index: chrome/browser/ui/webui/fileicon_source_chromeos.cc
diff --git a/chrome/browser/ui/webui/fileicon_source_chromeos.cc b/chrome/browser/ui/webui/fileicon_source_chromeos.cc
deleted file mode 100644
index d0dc1d5ddd571d22aeefa4ddaf9085021420c969..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/webui/fileicon_source_chromeos.cc
+++ /dev/null
@@ -1,259 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/browser/ui/webui/fileicon_source_chromeos.h"
-
-#include <map>
-#include <utility>
-#include <vector>
-
-#include "base/file_util.h"
-#include "base/memory/singleton.h"
-#include "base/string_split.h"
-#include "base/string_util.h"
-#include "base/threading/thread_restrictions.h"
-#include "chrome/browser/icon_loader.h"
-#include "chrome/browser/io_thread.h"
-#include "chrome/browser/ui/webui/chrome_url_data_manager.h"
-#include "chrome/common/url_constants.h"
-#include "googleurl/src/gurl.h"
-#include "grit/component_extension_resources.h"
-#include "grit/component_extension_resources_map.h"
-#include "grit/generated_resources.h"
-#include "grit/theme_resources.h"
-#include "grit/ui_resources.h"
-#include "net/base/escape.h"
-#include "net/base/mime_util.h"
-#include "ui/base/resource/resource_bundle.h"
-
-namespace {
-
-struct IdrBySize {
-  int idr_small_;
-  int idr_normal_;
-  int idr_large_;
-};
-
-typedef std::map<std::string, IconLoader::IconSize> QueryIconSizeMap;
-typedef std::map<std::string, IdrBySize> ExtensionIconSizeMap;
-
-const char *kIconSize = "iconsize";
-
-const IdrBySize kAudioIdrs = {
-  IDR_FILE_MANAGER_IMG_FILETYPE_AUDIO,
-  IDR_FILE_MANAGER_IMG_FILETYPE_LARGE_AUDIO,
-  IDR_FILE_MANAGER_IMG_FILETYPE_LARGE_AUDIO
-};
-const IdrBySize kDeviceIdrs = {
-  IDR_FILE_MANAGER_IMG_FILETYPE_DEVICE,
-  IDR_FILE_MANAGER_IMG_FILETYPE_DEVICE,
-  IDR_FILE_MANAGER_IMG_FILETYPE_DEVICE
-};
-const IdrBySize kDocIdrs = {
-  IDR_FILE_MANAGER_IMG_FILETYPE_DOC,
-  IDR_FILE_MANAGER_IMG_FILETYPE_DOC,
-  IDR_FILE_MANAGER_IMG_FILETYPE_DOC
-};
-const IdrBySize kFolderIdrs = {
-  IDR_FILE_MANAGER_IMG_FILETYPE_FOLDER,
-  IDR_FILE_MANAGER_IMG_FILETYPE_LARGE_FOLDER,
-  IDR_FILE_MANAGER_IMG_FILETYPE_LARGE_FOLDER
-};
-const IdrBySize kGenericIdrs = {
-  IDR_FILE_MANAGER_IMG_FILETYPE_GENERIC,
-  IDR_FILE_MANAGER_IMG_FILETYPE_LARGE_GENERIC,
-  IDR_FILE_MANAGER_IMG_FILETYPE_LARGE_GENERIC
-};
-const IdrBySize kHtmlIdrs = {
-  IDR_FILE_MANAGER_IMG_FILETYPE_HTML,
-  IDR_FILE_MANAGER_IMG_FILETYPE_HTML,
-  IDR_FILE_MANAGER_IMG_FILETYPE_HTML
-};
-const IdrBySize kImageIdrs = {
-  IDR_FILE_MANAGER_IMG_FILETYPE_IMAGE,
-  IDR_FILE_MANAGER_IMG_FILETYPE_IMAGE,
-  IDR_FILE_MANAGER_IMG_FILETYPE_IMAGE
-};
-const IdrBySize kPdfIdrs = {
-  IDR_FILE_MANAGER_IMG_FILETYPE_PDF,
-  IDR_FILE_MANAGER_IMG_FILETYPE_PDF,
-  IDR_FILE_MANAGER_IMG_FILETYPE_PDF
-};
-const IdrBySize kPresentationIdrs = {
-  IDR_FILE_MANAGER_IMG_FILETYPE_PRESENTATION,
-  IDR_FILE_MANAGER_IMG_FILETYPE_PRESENTATION,
-  IDR_FILE_MANAGER_IMG_FILETYPE_PRESENTATION
-};
-const IdrBySize kSpreadsheetIdrs = {
-  IDR_FILE_MANAGER_IMG_FILETYPE_SPREADSHEET,
-  IDR_FILE_MANAGER_IMG_FILETYPE_SPREADSHEET,
-  IDR_FILE_MANAGER_IMG_FILETYPE_SPREADSHEET
-};
-const IdrBySize kUnreadableDeviceIdrs = {
-  IDR_FILE_MANAGER_IMG_FILETYPE_UNREADABLE_DEVICE,
-  IDR_FILE_MANAGER_IMG_FILETYPE_UNREADABLE_DEVICE,
-  IDR_FILE_MANAGER_IMG_FILETYPE_UNREADABLE_DEVICE
-};
-const IdrBySize kTextIdrs = {
-  IDR_FILE_MANAGER_IMG_FILETYPE_TEXT,
-  IDR_FILE_MANAGER_IMG_FILETYPE_TEXT,
-  IDR_FILE_MANAGER_IMG_FILETYPE_TEXT
-};
-const IdrBySize kVideoIdrs = {
-  IDR_FILE_MANAGER_IMG_FILETYPE_VIDEO,
-  IDR_FILE_MANAGER_IMG_FILETYPE_LARGE_VIDEO,
-  IDR_FILE_MANAGER_IMG_FILETYPE_LARGE_VIDEO
-};
-
-QueryIconSizeMap BuildQueryIconSizeMap() {
-  QueryIconSizeMap::value_type kQueryIconSizeData[] = {
-    std::make_pair("small", IconLoader::SMALL),
-    std::make_pair("normal", IconLoader::NORMAL),
-    std::make_pair("large", IconLoader::LARGE)
-  };
-
-  size_t kQSize = arraysize(kQueryIconSizeData);
-  return QueryIconSizeMap(&kQueryIconSizeData[0],
-                          &kQueryIconSizeData[kQSize]);
-}
-
-// The code below should match translation in
-// chrome/browser/resources/file_manager/js/file_manager.js
-// chrome/browser/resources/file_manager/css/file_manager.css
-// 'audio': /\.(mp3|m4a|oga|ogg|wav)$/i,
-// 'html': /\.(html?)$/i,
-// 'image': /\.(bmp|gif|jpe?g|ico|png|webp)$/i,
-// 'pdf' : /\.(pdf)$/i,
-// 'text': /\.(pod|rst|txt|log)$/i,
-// 'video': /\.(mov|mp4|m4v|mpe?g4?|ogm|ogv|ogx|webm)$/i
-
-ExtensionIconSizeMap BuildExtensionIdrSizeMap() {
-  const ExtensionIconSizeMap::value_type kExtensionIdrBySizeData[] = {
-#if defined(GOOGLE_CHROME_BUILD) || defined(USE_PROPRIETARY_CODECS)
-    std::make_pair(".m4a", kAudioIdrs),
-    std::make_pair(".mp3", kAudioIdrs),
-    std::make_pair(".pdf", kPdfIdrs),
-    std::make_pair(".3gp", kVideoIdrs),
-    std::make_pair(".avi", kVideoIdrs),
-    std::make_pair(".m4v", kVideoIdrs),
-    std::make_pair(".mov", kVideoIdrs),
-    std::make_pair(".mp4", kVideoIdrs),
-    std::make_pair(".mpeg", kVideoIdrs),
-    std::make_pair(".mpg", kVideoIdrs),
-    std::make_pair(".mpeg4", kVideoIdrs),
-    std::make_pair(".mpg4", kVideoIdrs),
-#endif
-    std::make_pair(".flac", kAudioIdrs),
-    std::make_pair(".oga", kAudioIdrs),
-    std::make_pair(".ogg", kAudioIdrs),
-    std::make_pair(".wav", kAudioIdrs),
-    std::make_pair(".htm", kHtmlIdrs),
-    std::make_pair(".html", kHtmlIdrs),
-    std::make_pair(".bmp", kImageIdrs),
-    std::make_pair(".gif", kImageIdrs),
-    std::make_pair(".ico", kImageIdrs),
-    std::make_pair(".jpeg", kImageIdrs),
-    std::make_pair(".jpg", kImageIdrs),
-    std::make_pair(".png", kImageIdrs),
-    std::make_pair(".webp", kImageIdrs),
-    std::make_pair(".log", kTextIdrs),
-    std::make_pair(".pod", kTextIdrs),
-    std::make_pair(".rst", kTextIdrs),
-    std::make_pair(".txt", kTextIdrs),
-    std::make_pair(".ogm", kVideoIdrs),
-    std::make_pair(".ogv", kVideoIdrs),
-    std::make_pair(".ogx", kVideoIdrs),
-    std::make_pair(".webm", kVideoIdrs),
-  };
-
-  const size_t kESize = arraysize(kExtensionIdrBySizeData);
-  return ExtensionIconSizeMap(&kExtensionIdrBySizeData[0],
-                              &kExtensionIdrBySizeData[kESize]);
-}
-
-// Split on the very first &. The first part is path, the rest query.
-void GetExtensionAndQuery(const std::string& url,
-                          std::string* extension,
-                          std::string* query) {
-  // We receive the url with chrome://fileicon/ stripped but GURL expects it.
-  const GURL gurl("chrome://fileicon/" + net::EscapePath(url));
-  const std::string path = gurl.path();
-  *extension = StringToLowerASCII(FilePath(path).Extension());
-  *query = gurl.query();
-}
-
-// Simple parser for data on the query.
-IconLoader::IconSize QueryToIconSize(const std::string& query) {
-  CR_DEFINE_STATIC_LOCAL(
-      QueryIconSizeMap, kQueryIconSizeMap, (BuildQueryIconSizeMap()));
-  typedef std::pair<std::string, std::string> KVPair;
-  std::vector<KVPair> parameters;
-  if (base::SplitStringIntoKeyValuePairs(query, '=', '&', &parameters)) {
-    for (std::vector<KVPair>::const_iterator itk = parameters.begin();
-         itk != parameters.end(); ++itk) {
-      if (itk->first == kIconSize) {
-        QueryIconSizeMap::const_iterator itq(
-            kQueryIconSizeMap.find(itk->second));
-        if (itq != kQueryIconSizeMap.end())
-          return itq->second;
-      }
-    }
-  }
-  return IconLoader::NORMAL;
-}
-
-// Finds matching resource of proper size. Fallback to generic.
-int UrlToIDR(const std::string& url) {
-  CR_DEFINE_STATIC_LOCAL(
-      ExtensionIconSizeMap, kExtensionIdrSizeMap, (BuildExtensionIdrSizeMap()));
-  std::string extension, query;
-  int idr = -1;
-  GetExtensionAndQuery(url, &extension, &query);
-  const IconLoader::IconSize size = QueryToIconSize(query);
-  ExtensionIconSizeMap::const_iterator it =
-      kExtensionIdrSizeMap.find(extension);
-  if (it != kExtensionIdrSizeMap.end()) {
-    IdrBySize idrbysize = it->second;
-    if (size == IconLoader::SMALL) {
-      idr = idrbysize.idr_small_;
-    } else if (size == IconLoader::NORMAL) {
-      idr = idrbysize.idr_normal_;
-    } else if (size == IconLoader::LARGE) {
-      idr = idrbysize.idr_large_;
-    }
-  }
-  if (idr == -1) {
-    if (size == IconLoader::SMALL) {
-      idr = kGenericIdrs.idr_small_;
-    } else if (size == IconLoader::NORMAL) {
-      idr = kGenericIdrs.idr_normal_;
-    } else {
-      idr = kGenericIdrs.idr_large_;
-    }
-  }
-  return idr;
-}
-}  // namespace
-
-FileIconSourceCros::FileIconSourceCros()
-    : DataSource("fileicon", NULL) {
-}
-
-FileIconSourceCros::~FileIconSourceCros() {
-}
-
-void FileIconSourceCros::StartDataRequest(const std::string& url,
-                                          bool is_incognito,
-                                          int request_id) {
-  int idr = UrlToIDR(url);
-  const ResourceBundle& rb = ResourceBundle::GetSharedInstance();
-  scoped_refptr<RefCountedStaticMemory> bytes(rb.LoadDataResourceBytes(idr));
-  SendResponse(request_id, bytes);
-}
-
-// The mime type refers to the type of the response/icon served.
-std::string FileIconSourceCros::GetMimeType(
-    const std::string& url) const {
-  return "image/png";
-}