Add support for Flash Player Component updates on Linux

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"
@@ skipping 42 matching lines @@
 
 #if defined(OS_LINUX)
 // The path to the external extension <id>.json files.
 // /usr/share seems like a good choice, see: http://www.pathname.com/fhs/
 const base::FilePath::CharType kFilepathSinglePrefExtensions[] =
 #if defined(GOOGLE_CHROME_BUILD)
     FILE_PATH_LITERAL("/usr/share/google-chrome/extensions");
 #else
     FILE_PATH_LITERAL("/usr/share/chromium/extensions");
 #endif  // defined(GOOGLE_CHROME_BUILD)
+
+// The path to the hint file that tells the pepper plugin loader
+// where it can find the latest component updated flash.
+const base::FilePath::CharType kComponentUpdatedFlashHint[] =
+    FILE_PATH_LITERAL("latest-component-updated-flash");
 #endif  // defined(OS_LINUX)
 
 static base::LazyInstance<base::FilePath>
     g_invalid_specified_user_data_dir = LAZY_INSTANCE_INITIALIZER;
 
 // Gets the path for internal plugins.
 bool GetInternalPluginsDirectory(base::FilePath* result) {
 #if defined(OS_MACOSX) && !defined(OS_IOS)
   // If called from Chrome, get internal plugins from a subdirectory of the
   // framework.
@@ skipping 486 matching lines @@
       cur = cur.Append(kGCMStoreDirname);
       break;
 #endif  // !defined(OS_ANDROID)
 #if defined(OS_ANDROID)
     case chrome::DIR_OFFLINE_PAGE_METADATA:
       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
         return false;
       cur = cur.Append(kOfflinePageMetadataDirname);
       break;
 #endif  // defined(OS_ANDROID)
+#if defined(OS_LINUX)
+    case chrome::FILE_COMPONENT_FLASH_HINT:
+      if (!PathService::Get(chrome::DIR_COMPONENT_UPDATED_PEPPER_FLASH_PLUGIN,
+                            &cur))

[Lei Zhang, 2015/08/14 22:37:07]

add braces

[Greg K, 2015/08/17 21:11:57]

Done.

+        return false;
+      cur = cur.Append(kComponentUpdatedFlashHint);
+      break;
+#endif  // defined(OS_LINUX)
 
     default:
       return false;
   }
 
   // TODO(bauerb): http://crbug.com/259796
   base::ThreadRestrictions::ScopedAllowIO allow_io;
   if (create_dir && !base::PathExists(cur) &&
       !base::CreateDirectory(cur))
     return false;
@@ skipping 10 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