Move the current default plugin implementation to being

windows-specific and have plugin_impl.h include the
correct version based on the platform.

jam: primary
evan: FYI


Review URL: http://codereview.chromium.org/19727

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@8997 0039d316-1c4b-4281-b951-d872f2087c98

5 files changed, 388 insertions, 377 deletions

diff --git a/webkit/default_plugin/SConscript b/webkit/default_plugin/SConscript
index 3c84f9a..79417f8 100644
--- a/webkit/default_plugin/SConscript
+++ b/webkit/default_plugin/SConscript
@@ -44,7 +44,7 @@ if env.Bit('windows'):
       'activex_installer.cc',
       'default_plugin.cc',
       'plugin_main.cc',
-      'plugin_impl.cc',
+      'plugin_impl_win.cc',
       'plugin_database_handler.cc',
       'plugin_install_job_monitor.cc',
       'install_dialog.cc',
diff --git a/webkit/default_plugin/default_plugin.vcproj b/webkit/default_plugin/default_plugin.vcproj
index b3ee9cf..cc6a359 100644
--- a/webkit/default_plugin/default_plugin.vcproj
+++ b/webkit/default_plugin/default_plugin.vcproj
@@ -158,11 +158,11 @@
 			>
 		</File>
 		<File
-			RelativePath=".\plugin_impl.cc"
+			RelativePath=".\plugin_impl_win.cc"
 			>
 		</File>
 		<File
-			RelativePath=".\plugin_impl.h"
+			RelativePath=".\plugin_impl_win.h"
 			>
 		</File>
 		<File
diff --git a/webkit/default_plugin/plugin_impl.h b/webkit/default_plugin/plugin_impl.h
index 1e94a3a..a1fe5a9 100644
--- a/webkit/default_plugin/plugin_impl.h
+++ b/webkit/default_plugin/plugin_impl.h
@@ -1,375 +1,11 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// 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.
-
-#ifndef WEBKIT_DEFAULT_PLUGIN_PLUGIN_IMPL_H__
-#define WEBKIT_DEFAULT_PLUGIN_PLUGIN_IMPL_H__
-
-#include <atlbase.h>
-#include <atlwin.h>
-#include <string>
-#include <vector>
-
-#include "base/logging.h"
-#include "third_party/npapi/bindings/npapi.h"
-#include "webkit/default_plugin/install_dialog.h"
-#include "webkit/default_plugin/plugin_database_handler.h"
-#include "webkit/default_plugin/plugin_install_job_monitor.h"
-
-// Possible plugin installer states.
-enum PluginInstallerState {
-  PluginInstallerStateUndefined,
-  PluginListDownloadInitiated,
-  PluginListDownloaded,
-  PluginListDownloadedPluginNotFound,
-  PluginListDownloadFailed,
-  PluginDownloadInitiated,
-  PluginDownloadCompleted,
-  PluginDownloadFailed,
-  PluginInstallerLaunchSuccess,
-  PluginInstallerLaunchFailure
-};
-
-class ActiveXInstaller;
-class PluginInstallDialog;
-class PluginDatabaseHandler;
-
-// Provides the plugin installation functionality. This class is
-// instantiated with the information like the mime type of the
-// target plugin, the display mode, etc.
-class PluginInstallerImpl : public CWindowImpl<PluginInstallerImpl> {
- public:
-  static const int kRefreshPluginsMessage  = WM_APP + 1;
-  static const int kInstallMissingPluginMessage = WM_APP + 2;
-  static const int kActivexInstallResult = WM_USER + 74;
-
-  // mode is the plugin instantiation mode, i.e. whether it is a full
-  // page plugin (NP_FULL) or an embedded plugin (NP_EMBED)
-  explicit PluginInstallerImpl(int16 mode);
-  virtual ~PluginInstallerImpl();
-
-  BEGIN_MSG_MAP(PluginInstallerImpl)
-    MESSAGE_HANDLER(WM_ERASEBKGND, OnEraseBackGround)
-    MESSAGE_HANDLER(WM_PAINT, OnPaint)
-    MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
-    MESSAGE_HANDLER(kRefreshPluginsMessage, OnRefreshPlugins)
-    MESSAGE_HANDLER(WM_COPYDATA, OnCopyData)
-    MESSAGE_HANDLER(WM_SETCURSOR, OnSetCursor)
-    MESSAGE_HANDLER(kActivexInstallResult, OnActiveXInstallResult)
-  END_MSG_MAP()
-
-  // Initializes the plugin with the instance information, mime type
-  // and the list of parameters passed down to the plugin from the webpage.
-  //
-  // Parameters:
-  // module_handle
-  //   The handle to the dll in which this object is instantiated.
-  // instance
-  //   The plugins opaque instance handle.
-  // mime_type
-  //   Identifies the third party plugin which would be eventually installed.
-  // argc
-  //   Indicates the count of arguments passed in from the webpage.
-  // argv
-  //   Pointer to the arguments.
-  // Returns true on success.
-  bool Initialize(HINSTANCE module_handle, NPP instance, NPMIMEType mime_type,
-                  int16 argc, char* argn[], char* argv[]);
-
-  // Displays the default plugin UI.
-  //
-  // Parameters:
-  // parent_window
-  //   Handle to the parent window.
-  bool SetWindow(HWND parent_window);
-
-  // Destroys the install dialog and the plugin window.
-  void Shutdown();
-
-  // Starts plugin download. Spawns the plugin installer after it is
-  // downloaded.
-  void DownloadPlugin();
-
-  // Indicates that the plugin download was cancelled.
-  void DownloadCancelled();
-
-  // Initializes the plugin download stream.
-  //
-  // Parameters:
-  // stream
-  //   Pointer to the new stream being created.
-  void NewStream(NPStream* stream);
-
-  // Uninitializes the plugin download stream.
-  //
-  // Parameters:
-  // stream
-  //   Pointer to the stream being destroyed.
-  // reason
-  //   Indicates why the stream is being destroyed.
-  //
-  void DestroyStream(NPStream* stream, NPError reason);
-
-  // Determines whether the plugin is ready to accept data.
-  // We only accept data when we have initiated a download for the plugin
-  // database.
-  //
-  // Parameters:
-  // stream
-  //   Pointer to the stream being destroyed.
-  // Returns true if the plugin is ready to accept data.
-  bool WriteReady(NPStream* stream);
-
-  // Delivers data to the plugin instance.
-  //
-  // Parameters:
-  // stream
-  //   Pointer to the stream being destroyed.
-  // offset
-  //   Indicates the data offset.
-  // buffer_length
-  //   Indicates the length of the data buffer.
-  // buffer
-  //   Pointer to the actual buffer.
-  // Returns the number of bytes actually written, 0 on error.
-  int32 Write(NPStream* stream, int32 offset, int32 buffer_length,
-              void* buffer);
-
-  // Handles notifications received in response to GetURLNotify calls issued
-  // by the plugin.
-  //
-  // Parameters:
-  // url
-  //   Pointer to the URL.
-  // reason
-  //   Describes why the notification was sent.
-  void URLNotify(const char* url, NPReason reason);
-
-  // Initiates activex installs if applicable.
-  // Note: The null plugin being a windowed plugin does not have to implement
-  // NPP_HandleEvent. However to handle activex installations, we have this
-  // hack to allow the renderer to send out a request for installing the
-  // activex.
-  int16 NPP_HandleEvent(void* event);
-
-  HWND window() const { return m_hWnd; }
-  const std::string& mime_type() const { return mime_type_; }
-
-  // Replaces a resource string with the placeholder passed in as an argument
-  //
-  // Parameters:
-  // message_id_with_placeholders
-  //   The resource id of the string with placeholders. This is only used if
-  //   the placeholder string (the replacement_string) parameter is valid.
-  // message_id_without_placeholders
-  //   The resource id of the string to be returned if the placeholder is
-  //   empty.
-  // replacement_string
-  //   The placeholder which replaces tokens in the string identified by
-  //   resource id message_id_with_placeholders.
-  // Returns a string which has the placeholders replaced, or the string
-  // without placeholders.
-  static std::wstring ReplaceStringForPossibleEmptyReplacement(
-      int message_id_with_placeholders, int message_id_without_placeholders,
-      const std::wstring& replacement_string);
-
-  // Setter/getter combination to set and retreieve the current
-  // state of the plugin installer.
-  void set_plugin_installer_state(PluginInstallerState new_state) {
-    plugin_installer_state_ = new_state;
-  }
-
-  PluginInstallerState plugin_installer_state() const {
-    return plugin_installer_state_;
-  }
-
-  // Getter for the NPP instance member.
-  const NPP instance() const {
-    return instance_;
-  }
-
-  // Returns whether or not the UI layout is right-to-left (such as Hebrew or
-  // Arabic).
-  bool IsRTLLayout() const;
-
- protected:
-  // Window message handlers.
-  LRESULT OnPaint(UINT message, WPARAM wparam, LPARAM lparam, BOOL& handled);
-  LRESULT OnEraseBackGround(UINT message, WPARAM wparam, LPARAM lparam,
-                            BOOL& handled);
-  LRESULT OnLButtonDown(UINT message, WPARAM wparam, LPARAM lparam,
-                        BOOL& handled);
-  LRESULT OnSetCursor(UINT message, WPARAM wparam, LPARAM lparam,
-                      BOOL& handled);
-
-  // Refreshes the loaded plugin list and reloads the current page.
-  LRESULT OnRefreshPlugins(UINT message, WPARAM wparam, LPARAM lparam,
-                           BOOL& handled);
-
-  // Launches the third party plugin installer. This message is
-  // received when the request to download the installer, initiated by
-  // plugin completes.
-  LRESULT OnCopyData(UINT message, WPARAM wparam, LPARAM lparam, BOOL& handled);
-
-  // Displays status information for ActiveX installs
-  LRESULT OnActiveXInstallResult(UINT message, WPARAM wparam, LPARAM lparam,
-                                 BOOL& handled);
-
-  // Displays the plugin install confirmation dialog.
-  void ShowInstallDialog();
-
-  // Clears the current display state.
-  void ClearDisplay();
-
-  // Displays the status message identified by the message resource id
-  // passed in.
-  //
-  // Parameters:
-  // message_resource_id parameter
-  //   The resource id of the message to be displayed.
-  void DisplayStatus(int message_resource_id);
-
-  // Displays status information for the third party plugin which is needed
-  // by the page.
-  void DisplayAvailablePluginStatus();
-
-  // Displays information related to third party plugin download failure.
-  void DisplayPluginDownloadFailedStatus();
-
-  // Enables the plugin window if required and initiates an update of the
-  // the plugin window.
-  void RefreshDisplay();
-
-  // Create tooltip window.
-  bool CreateToolTip();
-
-  // Update ToolTip text with the message shown inside the default plugin.
-  void UpdateToolTip();
-
-  // Resolves the relative URL (could be already an absolute URL too) to return
-  // full URL based on current document's URL and base.
-  //
-  // Parameters:
-  // instance
-  //   The plugins opaque instance handle.
-  // relative_url
-  //   The URL to be resolved.
-  // Returns the resolved URL.
-  std::string ResolveURL(NPP instance, const std::string& relative_url);
-
-  // Initializes resources like the icon, fonts, etc needed by the plugin
-  // installer
-  //
-  // Parameters:
-  // module_handle
-  //   Handle to the dll in which this object is instantiated.
-  // Returns true on success.
-  bool InitializeResources(HINSTANCE module_handle);
-
-  // Parses the plugin instantiation arguments. This includes checking for
-  // whether this is an activex install and reading the appropriate
-  // arguments like codebase, etc. For plugin installs we download the
-  // plugin finder URL and initalize the mime type and the plugin instance
-  // info.
-  //
-  // Parameters:
-  // module_handle
-  //   The handle to the dll in which this object is instantiated.
-  // instance
-  //   The plugins opaque instance handle.
-  // mime_type
-  //   Identifies the third party plugin which would be eventually installed.
-  // argc
-  //   Indicates the count of arguments passed in from the webpage.
-  // argv
-  //   Pointer to the arguments.
-  // raw_activex_clsid
-  //   Output parameter which contains the CLSID of the Activex plugin needed.
-  //   This is only applicable if the webpage specifically requests an ActiveX
-  //   control.
-  // Returns true on success.
-  bool ParseInstantiationArguments(NPMIMEType mime_type, NPP instance,
-                                   int16 argc, char* argn[], char* argv[],
-                                   std::string* raw_activex_clsid);
-
-  // Paints user action messages to the plugin window. These include messages
-  // like whether the user should click on the plugin window to download the
-  // plugin, etc.
-  //
-  // Parameters:
-  // paint_dc
-  //   The device context returned in BeginPaint.
-  // x_origin
-  //   Horizontal reference point indicating where the text is to be displayed.
-  // y_origin
-  //   Vertical reference point indicating where the text is to be displayed.
-  //
-  void PaintUserActionInformation(HDC paint_dc, int x_origin, int y_origin);
-
- private:
-  // Notify the renderer that plugin is available to download.
-  void NotifyPluginStatus(int status);
-
-  // The plugins opaque instance handle
-  NPP instance_;
-  // If this is to install activex
-  bool is_activex_;
-  // The plugin instantiation mode (NP_FULL or NP_EMBED)
-  int16 mode_;
-  // The handle to the icon displayed in the plugin installation window.
-  HICON icon_;
-  // The Get plugin link message string displayed at the top left corner of
-  // the plugin window.
-  std::wstring get_plugin_link_message_;
-  // The command string displayed in the plugin installation window.
-  std::wstring command_;
-  // An additional message displayed at times by the plugin.
-  std::wstring optional_additional_message_;
-  // The current stream.
-  NPStream* plugin_install_stream_;
-  // The plugin finder URL.
-  std::string plugin_finder_url_;
-  // The desired mime type.
-  std::string mime_type_;
-  // The desired language.
-  std::string desired_language_;
-  // The plugin name.
-  std::wstring plugin_name_;
-  // The actual download URL.
-  std::string plugin_download_url_;
-  // Indicates if the plugin download URL points to an exe.
-  bool plugin_download_url_for_display_;
-  // The current state of the plugin installer.
-  PluginInstallerState plugin_installer_state_;
-  // Used to display the UI for plugin installation.
-  PluginInstallDialog install_dialog_;
-  // To enable auto refresh of the plugin window once the installation
-  // is complete, we spawn the installation process in a job, and monitor
-  // IO completion events on the job. When the active process count of the
-  // job falls to zero, we initiate an auto refresh of the plugin list
-  // which enables the downloaded plugin to be instantiated.
-  // The completion events from the job are monitored in an independent
-  // thread.
-  scoped_refptr<PluginInstallationJobMonitorThread>
-      installation_job_monitor_thread_;
-  // This object handles download and parsing of the plugins database.
-  PluginDatabaseHandler plugin_database_handler_;
-  // Indicates if the left click to download/refresh should be enabled or not.
-  bool enable_click_;
-  // Handles to the fonts used to display text in the plugin window.
-  HFONT bold_font_;
-  HFONT regular_font_;
-  HFONT underline_font_;
-  // Tooltip Window.
-  HWND tooltip_;
-  // ActiveX related.
-  std::string activex_codebase_;
-  std::string activex_clsid_;
-  CComObject<ActiveXInstaller>* activex_installer_;
-
-  DISALLOW_EVIL_CONSTRUCTORS(PluginInstallerImpl);
-};
-
-
-#endif  // WEBKIT_DEFAULT_PLUGIN_PLUGIN_IMPL_H__
-
+

+#if defined(OS_WIN)

+#include "webkit/default_plugin/plugin_impl_win.h"

+#elif defined (OS_MACOSX)

+#include "webkit/default_plugin/plugin_impl_mac.h"

+#elif defined (OS_LINUX)

+#include "webkit/default_plugin/plugin_impl_gtk.h"

+#endif

diff --git a/webkit/default_plugin/plugin_impl.cc b/webkit/default_plugin/plugin_impl_win.cc
index 6f51008..7894363 100644
--- a/webkit/default_plugin/plugin_impl.cc
+++ b/webkit/default_plugin/plugin_impl_win.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "webkit/default_plugin/plugin_impl.h"
+#include "webkit/default_plugin/plugin_impl_win.h"
 
 #include <shellapi.h>
 
diff --git a/webkit/default_plugin/plugin_impl_win.h b/webkit/default_plugin/plugin_impl_win.h
new file mode 100644
index 0000000..f7939e9
--- /dev/null
+++ b/webkit/default_plugin/plugin_impl_win.h
@@ -0,0 +1,375 @@
+// Copyright (c) 2006-2008 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.
+
+#ifndef WEBKIT_DEFAULT_PLUGIN_PLUGIN_IMPL_WIN_H_
+#define WEBKIT_DEFAULT_PLUGIN_PLUGIN_IMPL_WIN_H_
+
+#include <atlbase.h>
+#include <atlwin.h>
+#include <string>
+#include <vector>
+
+#include "base/logging.h"
+#include "third_party/npapi/bindings/npapi.h"
+#include "webkit/default_plugin/install_dialog.h"
+#include "webkit/default_plugin/plugin_database_handler.h"
+#include "webkit/default_plugin/plugin_install_job_monitor.h"
+
+// Possible plugin installer states.
+enum PluginInstallerState {
+  PluginInstallerStateUndefined,
+  PluginListDownloadInitiated,
+  PluginListDownloaded,
+  PluginListDownloadedPluginNotFound,
+  PluginListDownloadFailed,
+  PluginDownloadInitiated,
+  PluginDownloadCompleted,
+  PluginDownloadFailed,
+  PluginInstallerLaunchSuccess,
+  PluginInstallerLaunchFailure
+};
+
+class ActiveXInstaller;
+class PluginInstallDialog;
+class PluginDatabaseHandler;
+
+// Provides the plugin installation functionality. This class is
+// instantiated with the information like the mime type of the
+// target plugin, the display mode, etc.
+class PluginInstallerImpl : public CWindowImpl<PluginInstallerImpl> {
+ public:
+  static const int kRefreshPluginsMessage  = WM_APP + 1;
+  static const int kInstallMissingPluginMessage = WM_APP + 2;
+  static const int kActivexInstallResult = WM_USER + 74;
+
+  // mode is the plugin instantiation mode, i.e. whether it is a full
+  // page plugin (NP_FULL) or an embedded plugin (NP_EMBED)
+  explicit PluginInstallerImpl(int16 mode);
+  virtual ~PluginInstallerImpl();
+
+  BEGIN_MSG_MAP(PluginInstallerImpl)
+    MESSAGE_HANDLER(WM_ERASEBKGND, OnEraseBackGround)
+    MESSAGE_HANDLER(WM_PAINT, OnPaint)
+    MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
+    MESSAGE_HANDLER(kRefreshPluginsMessage, OnRefreshPlugins)
+    MESSAGE_HANDLER(WM_COPYDATA, OnCopyData)
+    MESSAGE_HANDLER(WM_SETCURSOR, OnSetCursor)
+    MESSAGE_HANDLER(kActivexInstallResult, OnActiveXInstallResult)
+  END_MSG_MAP()
+
+  // Initializes the plugin with the instance information, mime type
+  // and the list of parameters passed down to the plugin from the webpage.
+  //
+  // Parameters:
+  // module_handle
+  //   The handle to the dll in which this object is instantiated.
+  // instance
+  //   The plugins opaque instance handle.
+  // mime_type
+  //   Identifies the third party plugin which would be eventually installed.
+  // argc
+  //   Indicates the count of arguments passed in from the webpage.
+  // argv
+  //   Pointer to the arguments.
+  // Returns true on success.
+  bool Initialize(HINSTANCE module_handle, NPP instance, NPMIMEType mime_type,
+                  int16 argc, char* argn[], char* argv[]);
+
+  // Displays the default plugin UI.
+  //
+  // Parameters:
+  // parent_window
+  //   Handle to the parent window.
+  bool SetWindow(HWND parent_window);
+
+  // Destroys the install dialog and the plugin window.
+  void Shutdown();
+
+  // Starts plugin download. Spawns the plugin installer after it is
+  // downloaded.
+  void DownloadPlugin();
+
+  // Indicates that the plugin download was cancelled.
+  void DownloadCancelled();
+
+  // Initializes the plugin download stream.
+  //
+  // Parameters:
+  // stream
+  //   Pointer to the new stream being created.
+  void NewStream(NPStream* stream);
+
+  // Uninitializes the plugin download stream.
+  //
+  // Parameters:
+  // stream
+  //   Pointer to the stream being destroyed.
+  // reason
+  //   Indicates why the stream is being destroyed.
+  //
+  void DestroyStream(NPStream* stream, NPError reason);
+
+  // Determines whether the plugin is ready to accept data.
+  // We only accept data when we have initiated a download for the plugin
+  // database.
+  //
+  // Parameters:
+  // stream
+  //   Pointer to the stream being destroyed.
+  // Returns true if the plugin is ready to accept data.
+  bool WriteReady(NPStream* stream);
+
+  // Delivers data to the plugin instance.
+  //
+  // Parameters:
+  // stream
+  //   Pointer to the stream being destroyed.
+  // offset
+  //   Indicates the data offset.
+  // buffer_length
+  //   Indicates the length of the data buffer.
+  // buffer
+  //   Pointer to the actual buffer.
+  // Returns the number of bytes actually written, 0 on error.
+  int32 Write(NPStream* stream, int32 offset, int32 buffer_length,
+              void* buffer);
+
+  // Handles notifications received in response to GetURLNotify calls issued
+  // by the plugin.
+  //
+  // Parameters:
+  // url
+  //   Pointer to the URL.
+  // reason
+  //   Describes why the notification was sent.
+  void URLNotify(const char* url, NPReason reason);
+
+  // Initiates activex installs if applicable.
+  // Note: The null plugin being a windowed plugin does not have to implement
+  // NPP_HandleEvent. However to handle activex installations, we have this
+  // hack to allow the renderer to send out a request for installing the
+  // activex.
+  int16 NPP_HandleEvent(void* event);
+
+  HWND window() const { return m_hWnd; }
+  const std::string& mime_type() const { return mime_type_; }
+
+  // Replaces a resource string with the placeholder passed in as an argument
+  //
+  // Parameters:
+  // message_id_with_placeholders
+  //   The resource id of the string with placeholders. This is only used if
+  //   the placeholder string (the replacement_string) parameter is valid.
+  // message_id_without_placeholders
+  //   The resource id of the string to be returned if the placeholder is
+  //   empty.
+  // replacement_string
+  //   The placeholder which replaces tokens in the string identified by
+  //   resource id message_id_with_placeholders.
+  // Returns a string which has the placeholders replaced, or the string
+  // without placeholders.
+  static std::wstring ReplaceStringForPossibleEmptyReplacement(
+      int message_id_with_placeholders, int message_id_without_placeholders,
+      const std::wstring& replacement_string);
+
+  // Setter/getter combination to set and retreieve the current
+  // state of the plugin installer.
+  void set_plugin_installer_state(PluginInstallerState new_state) {
+    plugin_installer_state_ = new_state;
+  }
+
+  PluginInstallerState plugin_installer_state() const {
+    return plugin_installer_state_;
+  }
+
+  // Getter for the NPP instance member.
+  const NPP instance() const {
+    return instance_;
+  }
+
+  // Returns whether or not the UI layout is right-to-left (such as Hebrew or
+  // Arabic).
+  bool IsRTLLayout() const;
+
+ protected:
+  // Window message handlers.
+  LRESULT OnPaint(UINT message, WPARAM wparam, LPARAM lparam, BOOL& handled);
+  LRESULT OnEraseBackGround(UINT message, WPARAM wparam, LPARAM lparam,
+                            BOOL& handled);
+  LRESULT OnLButtonDown(UINT message, WPARAM wparam, LPARAM lparam,
+                        BOOL& handled);
+  LRESULT OnSetCursor(UINT message, WPARAM wparam, LPARAM lparam,
+                      BOOL& handled);
+
+  // Refreshes the loaded plugin list and reloads the current page.
+  LRESULT OnRefreshPlugins(UINT message, WPARAM wparam, LPARAM lparam,
+                           BOOL& handled);
+
+  // Launches the third party plugin installer. This message is
+  // received when the request to download the installer, initiated by
+  // plugin completes.
+  LRESULT OnCopyData(UINT message, WPARAM wparam, LPARAM lparam, BOOL& handled);
+
+  // Displays status information for ActiveX installs
+  LRESULT OnActiveXInstallResult(UINT message, WPARAM wparam, LPARAM lparam,
+                                 BOOL& handled);
+
+  // Displays the plugin install confirmation dialog.
+  void ShowInstallDialog();
+
+  // Clears the current display state.
+  void ClearDisplay();
+
+  // Displays the status message identified by the message resource id
+  // passed in.
+  //
+  // Parameters:
+  // message_resource_id parameter
+  //   The resource id of the message to be displayed.
+  void DisplayStatus(int message_resource_id);
+
+  // Displays status information for the third party plugin which is needed
+  // by the page.
+  void DisplayAvailablePluginStatus();
+
+  // Displays information related to third party plugin download failure.
+  void DisplayPluginDownloadFailedStatus();
+
+  // Enables the plugin window if required and initiates an update of the
+  // the plugin window.
+  void RefreshDisplay();
+
+  // Create tooltip window.
+  bool CreateToolTip();
+
+  // Update ToolTip text with the message shown inside the default plugin.
+  void UpdateToolTip();
+
+  // Resolves the relative URL (could be already an absolute URL too) to return
+  // full URL based on current document's URL and base.
+  //
+  // Parameters:
+  // instance
+  //   The plugins opaque instance handle.
+  // relative_url
+  //   The URL to be resolved.
+  // Returns the resolved URL.
+  std::string ResolveURL(NPP instance, const std::string& relative_url);
+
+  // Initializes resources like the icon, fonts, etc needed by the plugin
+  // installer
+  //
+  // Parameters:
+  // module_handle
+  //   Handle to the dll in which this object is instantiated.
+  // Returns true on success.
+  bool InitializeResources(HINSTANCE module_handle);
+
+  // Parses the plugin instantiation arguments. This includes checking for
+  // whether this is an activex install and reading the appropriate
+  // arguments like codebase, etc. For plugin installs we download the
+  // plugin finder URL and initalize the mime type and the plugin instance
+  // info.
+  //
+  // Parameters:
+  // module_handle
+  //   The handle to the dll in which this object is instantiated.
+  // instance
+  //   The plugins opaque instance handle.
+  // mime_type
+  //   Identifies the third party plugin which would be eventually installed.
+  // argc
+  //   Indicates the count of arguments passed in from the webpage.
+  // argv
+  //   Pointer to the arguments.
+  // raw_activex_clsid
+  //   Output parameter which contains the CLSID of the Activex plugin needed.
+  //   This is only applicable if the webpage specifically requests an ActiveX
+  //   control.
+  // Returns true on success.
+  bool ParseInstantiationArguments(NPMIMEType mime_type, NPP instance,
+                                   int16 argc, char* argn[], char* argv[],
+                                   std::string* raw_activex_clsid);
+
+  // Paints user action messages to the plugin window. These include messages
+  // like whether the user should click on the plugin window to download the
+  // plugin, etc.
+  //
+  // Parameters:
+  // paint_dc
+  //   The device context returned in BeginPaint.
+  // x_origin
+  //   Horizontal reference point indicating where the text is to be displayed.
+  // y_origin
+  //   Vertical reference point indicating where the text is to be displayed.
+  //
+  void PaintUserActionInformation(HDC paint_dc, int x_origin, int y_origin);
+
+ private:
+  // Notify the renderer that plugin is available to download.
+  void NotifyPluginStatus(int status);
+
+  // The plugins opaque instance handle
+  NPP instance_;
+  // If this is to install activex
+  bool is_activex_;
+  // The plugin instantiation mode (NP_FULL or NP_EMBED)
+  int16 mode_;
+  // The handle to the icon displayed in the plugin installation window.
+  HICON icon_;
+  // The Get plugin link message string displayed at the top left corner of
+  // the plugin window.
+  std::wstring get_plugin_link_message_;
+  // The command string displayed in the plugin installation window.
+  std::wstring command_;
+  // An additional message displayed at times by the plugin.
+  std::wstring optional_additional_message_;
+  // The current stream.
+  NPStream* plugin_install_stream_;
+  // The plugin finder URL.
+  std::string plugin_finder_url_;
+  // The desired mime type.
+  std::string mime_type_;
+  // The desired language.
+  std::string desired_language_;
+  // The plugin name.
+  std::wstring plugin_name_;
+  // The actual download URL.
+  std::string plugin_download_url_;
+  // Indicates if the plugin download URL points to an exe.
+  bool plugin_download_url_for_display_;
+  // The current state of the plugin installer.
+  PluginInstallerState plugin_installer_state_;
+  // Used to display the UI for plugin installation.
+  PluginInstallDialog install_dialog_;
+  // To enable auto refresh of the plugin window once the installation
+  // is complete, we spawn the installation process in a job, and monitor
+  // IO completion events on the job. When the active process count of the
+  // job falls to zero, we initiate an auto refresh of the plugin list
+  // which enables the downloaded plugin to be instantiated.
+  // The completion events from the job are monitored in an independent
+  // thread.
+  scoped_refptr<PluginInstallationJobMonitorThread>
+      installation_job_monitor_thread_;
+  // This object handles download and parsing of the plugins database.
+  PluginDatabaseHandler plugin_database_handler_;
+  // Indicates if the left click to download/refresh should be enabled or not.
+  bool enable_click_;
+  // Handles to the fonts used to display text in the plugin window.
+  HFONT bold_font_;
+  HFONT regular_font_;
+  HFONT underline_font_;
+  // Tooltip Window.
+  HWND tooltip_;
+  // ActiveX related.
+  std::string activex_codebase_;
+  std::string activex_clsid_;
+  CComObject<ActiveXInstaller>* activex_installer_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(PluginInstallerImpl);
+};
+
+
+#endif  // WEBKIT_DEFAULT_PLUGIN_PLUGIN_IMPL_WIN_H_
+