Remove Gears from Chrome

chrome/browser/gears_integration.cc

Index: chrome/browser/gears_integration.cc
diff --git a/chrome/browser/gears_integration.cc b/chrome/browser/gears_integration.cc
deleted file mode 100644
index 648d255f9fac17b7c88bdeca04e01c8ce7b98ffd..0000000000000000000000000000000000000000
--- a/chrome/browser/gears_integration.cc
+++ /dev/null
@@ -1,309 +0,0 @@
-// Copyright (c) 2009 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/gears_integration.h"
-
-#include <string>
-#include <vector>
-
-#include "base/base64.h"
-#include "base/logging.h"
-#include "base/message_loop.h"
-#include "base/scoped_ptr.h"
-#include "base/utf_string_conversions.h"
-#include "chrome/browser/chrome_plugin_host.h"
-#include "chrome/common/chrome_plugin_util.h"
-#include "chrome/common/gears_api.h"
-#include "chrome/common/web_apps.h"
-#include "googleurl/src/gurl.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "ui/gfx/codec/png_codec.h"
-
-// The following 2 helpers are borrowed from the Gears codebase.
-
-const size_t kUserPathComponentMaxChars  = 64;
-
-// Returns true if and only if the char meets the following criteria:
-//
-// - visible ASCII
-// - None of the following characters: / \ : * ? " < > | ; ,
-//
-// This function is a heuristic that should identify most strings that are
-// invalid pathnames on popular OSes. It's both overinclusive and
-// underinclusive, though.
-template<class CharT>
-inline bool IsCharValidInPathComponent(CharT c) {
-  // Not visible ASCII?
-  // Note: the Gears version of this function excludes spaces (32) as well.  We
-  // allow them for file names.
-  if (c < 32 || c >= 127) {
-    return false;
-  }
-
-  // Illegal characters?
-  switch (c) {
-    case '/':
-    case '\\':
-    case ':':
-    case '*':
-    case '?':
-    case '"':
-    case '<':
-    case '>':
-    case '|':
-    case ';':
-    case ',':
-      return false;
-
-    default:
-      return true;
-  }
-}
-
-// Modifies a string, replacing characters that are not valid in a file path
-// component with the '_' character. Also replaces leading and trailing dots
-// with the '_' character.
-// See IsCharValidInPathComponent
-template<class StringT>
-inline void EnsureStringValidPathComponent(StringT &s) {
-  if (s.empty()) {
-    return;
-  }
-
-  typename StringT::iterator iter = s.begin();
-  typename StringT::iterator end = s.end();
-
-  // Does it start with a dot?
-  if (*iter == '.') {
-    *iter = '_';
-    ++iter;  // skip it in the loop below
-  }
-  // Is every char valid?
-  while (iter != end) {
-    if (!IsCharValidInPathComponent(*iter)) {
-      *iter = '_';
-    }
-    ++iter;
-  }
-  // Does it end with a dot?
-  --iter;
-  if (*iter == '.') {
-    *iter = '_';
-  }
-
-  // Is it too long?
-  if (s.size() > kUserPathComponentMaxChars)
-    s.resize(kUserPathComponentMaxChars);
-}
-
-void GearsSettingsPressed(gfx::NativeWindow parent_wnd) {
-  CPBrowsingContext context = static_cast<CPBrowsingContext>(
-      reinterpret_cast<uintptr_t>(parent_wnd));
-  CPHandleCommand(GEARSPLUGINCOMMAND_SHOW_SETTINGS, NULL, context);
-}
-
-// Gears only supports certain icon sizes.
-enum GearsIconSizes {
-  SIZE_16x16 = 0,
-  SIZE_32x32,
-  SIZE_48x48,
-  SIZE_128x128,
-  NUM_GEARS_ICONS,
-};
-
-// Helper function to convert a 16x16 favicon to a data: URL with the icon
-// encoded as a PNG.
-static GURL ConvertSkBitmapToDataURL(const SkBitmap& icon) {
-  DCHECK(!icon.isNull());
-  DCHECK(icon.width() == 16 && icon.height() == 16);
-
-  // Get the FavIcon data.
-  std::vector<unsigned char> icon_data;
-  gfx::PNGCodec::EncodeBGRASkBitmap(icon, false, &icon_data);
-
-  // Base64-encode it (to make it a data URL).
-  std::string icon_data_str(reinterpret_cast<char*>(&icon_data[0]),
-                            icon_data.size());
-  std::string icon_base64_encoded;
-  base::Base64Encode(icon_data_str, &icon_base64_encoded);
-  GURL icon_url("data:image/png;base64," + icon_base64_encoded);
-
-  return icon_url;
-}
-
-// This class holds and manages the data passed to the
-// GEARSPLUGINCOMMAND_CREATE_SHORTCUT plugin command.
-class CreateShortcutCommand : public CPCommandInterface {
- public:
-  CreateShortcutCommand(
-      const std::string& name, const std::string& orig_name,
-      const std::string& url, const std::string& description,
-      const std::vector<WebApplicationInfo::IconInfo> &icons,
-      const SkBitmap& fallback_icon,
-      GearsCreateShortcutCallback* callback)
-      : name_(name), url_(url), description_(description),
-        orig_name_(orig_name), callback_(callback),
-        calling_loop_(MessageLoop::current()) {
-    // shortcut_data_ has the same lifetime as our strings, so we just
-    // point it at their internal data.
-    memset(&shortcut_data_, 0, sizeof(shortcut_data_));
-    shortcut_data_.name = name_.c_str();
-    shortcut_data_.url = url_.c_str();
-    shortcut_data_.description = description_.c_str();
-    shortcut_data_.orig_name = orig_name_.c_str();
-
-    // Search the icons array for Gears-supported sizes and copy the strings.
-    bool has_icon = false;
-
-    for (size_t i = 0; i < icons.size(); ++i) {
-      const WebApplicationInfo::IconInfo& icon = icons[i];
-      if (icon.width == 16 && icon.height == 16) {
-        has_icon = true;
-        InitIcon(SIZE_16x16, icon.url, 16, 16);
-      } else if (icon.width == 32 && icon.height == 32) {
-        has_icon = true;
-        InitIcon(SIZE_32x32, icon.url, 32, 32);
-      } else if (icon.width == 48 && icon.height == 48) {
-        has_icon = true;
-        InitIcon(SIZE_48x48, icon.url, 48, 48);
-      } else if (icon.width == 128 && icon.height == 128) {
-        has_icon = true;
-        InitIcon(SIZE_128x128, icon.url, 128, 128);
-      }
-    }
-
-    if (!has_icon) {
-      // Fall back to the favicon only if the site provides no icons at all.  We
-      // assume if a site provides any icons, it wants to override default
-      // behavior.
-      InitIcon(SIZE_16x16, ConvertSkBitmapToDataURL(fallback_icon), 16, 16);
-    }
-
-    shortcut_data_.command_interface = this;
-  }
-  virtual ~CreateShortcutCommand() { }
-
-  // CPCommandInterface
-  virtual void* GetData() { return &shortcut_data_; }
-  virtual void OnCommandInvoked(CPError retval) {
-    if (retval != CPERR_IO_PENDING) {
-      // Older versions of Gears don't send a response, so don't wait for one.
-      OnCommandResponse(CPERR_FAILURE);
-    }
-  }
-  virtual void OnCommandResponse(CPError retval) {
-    calling_loop_->PostTask(FROM_HERE, NewRunnableMethod(
-        this, &CreateShortcutCommand::ReportResults, retval));
-  }
-
- private:
-  void ReportResults(CPError retval) {
-    // Other code only knows about the original GearsShortcutData.  Pass our
-    // GearsShortcutData2 off as one of those - but use the unmodified name.
-    // TODO(mpcomplete): this means that Gears will have stored its sanitized
-    // filename, but not expose it to us.  We will use the unsanitized version,
-    // so our name will potentially differ.  This is relevant because we store
-    // some prefs keyed off the webapp name.
-    shortcut_data_.name = shortcut_data_.orig_name;
-    callback_->Run(shortcut_data_, retval == CPERR_SUCCESS);
-    delete this;
-  }
-
-  void InitIcon(GearsIconSizes size, const GURL& url, int width, int height) {
-    icon_urls_[size] = url.spec();  // keeps the string memory in scope
-    shortcut_data_.icons[size].url = icon_urls_[size].c_str();
-    shortcut_data_.icons[size].width = width;
-    shortcut_data_.icons[size].height = height;
-  }
-
-  GearsCreateShortcutData shortcut_data_;
-  std::string name_;
-  std::string url_;
-  std::string description_;
-  std::string icon_urls_[NUM_GEARS_ICONS];
-  std::string orig_name_;
-  scoped_ptr<GearsCreateShortcutCallback> callback_;
-  MessageLoop* calling_loop_;
-};
-
-// Allows InvokeLater without adding refcounting.  The object is only deleted
-// when its last InvokeLater is run anyway.
-DISABLE_RUNNABLE_METHOD_REFCOUNT(CreateShortcutCommand);
-
-void GearsCreateShortcut(
-    const WebApplicationInfo& app_info,
-    const string16& fallback_name,
-    const GURL& fallback_url,
-    const SkBitmap& fallback_icon,
-    GearsCreateShortcutCallback* callback) {
-  string16 name =
-      !app_info.title.empty() ? app_info.title : fallback_name;
-  std::string orig_name_utf8 = UTF16ToUTF8(name);
-  EnsureStringValidPathComponent(name);
-
-  std::string name_utf8 = UTF16ToUTF8(name);
-  std::string description_utf8 = UTF16ToUTF8(app_info.description);
-  const GURL& url =
-      !app_info.app_url.is_empty() ? app_info.app_url : fallback_url;
-
-  CreateShortcutCommand* command =
-      new CreateShortcutCommand(name_utf8, orig_name_utf8, url.spec(),
-                                description_utf8,
-                                app_info.icons, fallback_icon, callback);
-  CPHandleCommand(GEARSPLUGINCOMMAND_CREATE_SHORTCUT, command, 0);
-}
-
-// This class holds and manages the data passed to the
-// GEARSPLUGINCOMMAND_GET_SHORTCUT_LIST plugin command.  When the command is
-// invoked, we proxy the results over to the calling thread.
-class QueryShortcutsCommand : public CPCommandInterface {
- public:
-  explicit QueryShortcutsCommand(GearsQueryShortcutsCallback* callback) :
-      callback_(callback), calling_loop_(MessageLoop::current()) {
-    shortcut_list_.shortcuts = NULL;
-    shortcut_list_.num_shortcuts = 0;
-  }
-  virtual ~QueryShortcutsCommand() { }
-  virtual void* GetData() { return &shortcut_list_; }
-  virtual void OnCommandInvoked(CPError retval) {
-    calling_loop_->PostTask(FROM_HERE, NewRunnableMethod(
-        this, &QueryShortcutsCommand::ReportResults, retval));
-  }
-
- private:
-  void ReportResults(CPError retval) {
-    callback_->Run(retval == CPERR_SUCCESS ? &shortcut_list_ : NULL);
-    FreeGearsShortcutList();
-    delete this;
-  }
-
-  void FreeGearsShortcutList() {
-    for (size_t i = 0; i < shortcut_list_.num_shortcuts; ++i) {
-      CPB_Free(const_cast<char*>(shortcut_list_.shortcuts[i].description));
-      CPB_Free(const_cast<char*>(shortcut_list_.shortcuts[i].name));
-      CPB_Free(const_cast<char*>(shortcut_list_.shortcuts[i].url));
-      for (size_t j = 0; j < 4; ++j)
-        CPB_Free(const_cast<char*>(shortcut_list_.shortcuts[i].icons[j].url));
-    }
-    CPB_Free(shortcut_list_.shortcuts);
-  }
-
-  GearsShortcutList shortcut_list_;
-  scoped_ptr<GearsQueryShortcutsCallback> callback_;
-  MessageLoop* calling_loop_;
-};
-
-// Allows InvokeLater without adding refcounting.  The object is only deleted
-// when its last InvokeLater is run anyway.
-template <>
-struct RunnableMethodTraits<QueryShortcutsCommand> {
-  void RetainCallee(QueryShortcutsCommand* command) {}
-  void ReleaseCallee(QueryShortcutsCommand* command) {}
-};
-
-void GearsQueryShortcuts(GearsQueryShortcutsCallback* callback) {
-  CPHandleCommand(GEARSPLUGINCOMMAND_GET_SHORTCUT_LIST,
-      new QueryShortcutsCommand(callback),
-      0);
-}