Register system Pepper Flash plugin if no packaged Pepper plugin is found.

chrome/common/chrome_paths.cc

 // Copyright (c) 2012 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/common/chrome_paths.h"
 
 #include "base/files/file_util.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/mac/bundle_locations.h"
 #include "base/path_service.h"
 #include "base/strings/string_util.h"
 #include "base/sys_info.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/version.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths_internal.h"
 #include "chrome/common/widevine_cdm_constants.h"
 #include "ui/base/ui_base_paths.h"
 
 #if defined(OS_ANDROID)
 #include "base/android/path_utils.h"
 #include "base/base_paths_android.h"
 #endif
 
 #if defined(OS_MACOSX)
 #include "base/mac/foundation_util.h"
 #endif
 
+#if defined(OS_WIN)
+#include "base/win/registry.h"
+#endif
+
 #include "widevine_cdm_version.h"  // In SHARED_INTERMEDIATE_DIR.
 
 namespace {
 
+#if defined(OS_WIN)
+const wchar_t kFlashRegistryRoot[] = L"SOFTWARE\\Macromedia\\FlashPlayerPepper";
+
+const wchar_t kFlashPlayerPathValueName[] = L"PlayerPath";
+#endif
+
 // File name of the internal Flash plugin on different platforms.
 const base::FilePath::CharType kInternalFlashPluginFileName[] =
 #if defined(OS_MACOSX)
     FILE_PATH_LITERAL("Flash Player Plugin for Chrome.plugin");
 #elif defined(OS_WIN)
     FILE_PATH_LITERAL("gcswf32.dll");
 #else  // OS_LINUX, etc.
     FILE_PATH_LITERAL("libgcflashplayer.so");
 #endif
 
 // The Pepper Flash plugins are in a directory with this name.
 const base::FilePath::CharType kPepperFlashBaseDirectory[] =
     FILE_PATH_LITERAL("PepperFlash");
 
 #if defined(OS_WIN)
-const base::FilePath::CharType kPepperFlashDebuggerBaseDirectory[] =
+const base::FilePath::CharType kPepperFlashSystemBaseDirectory[] =
     FILE_PATH_LITERAL("Macromed\\Flash");
+#elif defined(OS_MACOSX)
+const base::FilePath::CharType kPepperFlashSystemBaseDirectory[] =
+    FILE_PATH_LITERAL("Internet Plug-Ins/PepperFlashPlayer");
 #endif
 
 const base::FilePath::CharType kInternalNaClPluginFileName[] =
     FILE_PATH_LITERAL("internal-nacl-plugin");
 
 const base::FilePath::CharType kEffectsPluginFileName[] =
 #if defined(OS_WIN)
     FILE_PATH_LITERAL("pepper/libppeffects.dll");
 #elif defined(OS_MACOSX)
     FILE_PATH_LITERAL("pepper/libppeffects.plugin");
@@ skipping 36 matching lines @@
     *result = result->Append("Internet Plug-Ins");
     return true;
   }
   // In tests, just look in the module directory (below).
 #endif
 
   // The rest of the world expects plugins in the module directory.
   return PathService::Get(base::DIR_MODULE, result);
 }
 
+#if defined(OS_WIN)
+// Gets the Flash path if installed on the system.
+bool GetSystemFlashDirectory(base::FilePath* out_path) {
+  base::win::RegKey path_key(HKEY_LOCAL_MACHINE, kFlashRegistryRoot, KEY_READ);
+  base::string16 path_str;
+  if (FAILED(path_key.ReadValue(kFlashPlayerPathValueName, &path_str)))
+    return false;
+  base::FilePath plugin_path = base::FilePath(path_str).DirName();
+
+  if (!base::PathExists(plugin_path))
+    return false;
+
+  *out_path = plugin_path;
+  return true;
+}
+#endif
+
 }  // namespace
 
 namespace chrome {
 
 bool PathProvider(int key, base::FilePath* result) {
   // Some keys are just aliases...
   switch (key) {
     case chrome::DIR_APP:
       return PathService::Get(base::DIR_MODULE, result);
     case chrome::DIR_LOGS:
@@ skipping 127 matching lines @@
     case chrome::DIR_PEPPER_FLASH_PLUGIN:
       if (!GetInternalPluginsDirectory(&cur))
         return false;
       cur = cur.Append(kPepperFlashBaseDirectory);
       break;
     case chrome::DIR_COMPONENT_UPDATED_PEPPER_FLASH_PLUGIN:
       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
         return false;
       cur = cur.Append(kPepperFlashBaseDirectory);
       break;
-    case chrome::DIR_PEPPER_FLASH_DEBUGGER_PLUGIN:
+    case chrome::DIR_PEPPER_FLASH_SYSTEM_PLUGIN:
 #if defined(OS_WIN)
-      if (!PathService::Get(base::DIR_SYSTEM, &cur))
+      if (!GetSystemFlashDirectory(&cur))
         return false;
-      cur = cur.Append(kPepperFlashDebuggerBaseDirectory);
 #elif defined(OS_MACOSX)
-      // TODO(luken): finalize Mac OS directory paths, current consensus is
-      // around /Library/Internet Plug-Ins/PepperFlashPlayer/
-      return false;
+      if (!GetLocalLibraryDirectory(&cur))
+        return false;
+      cur = cur.Append(kPepperFlashSystemBaseDirectory);
 #else
+      // TODO(wfh): If Adobe release PPAPI binaries for Linux, add support here.
       return false;
 #endif
       break;
     case chrome::FILE_LOCAL_STATE:
       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
         return false;
       cur = cur.Append(chrome::kLocalStateFilename);
       break;
     case chrome::FILE_RECORDED_SCRIPT:
       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
@@ skipping 298 matching lines @@
 
 void SetInvalidSpecifiedUserDataDir(const base::FilePath& user_data_dir) {
   g_invalid_specified_user_data_dir.Get() = user_data_dir;
 }
 
 const base::FilePath& GetInvalidSpecifiedUserDataDir() {
   return g_invalid_specified_user_data_dir.Get();
 }
 
 }  // namespace chrome