Add the ability to clear the shader disk cache.

content/browser/storage_partition_impl.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 "content/browser/storage_partition_impl.h"
 
 #include "base/utf_string_conversions.h"
 #include "content/browser/fileapi/browser_file_system_helper.h"
+#include "content/browser/gpu/shader_disk_cache.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/dom_storage_context.h"
 #include "content/public/browser/indexed_db_context.h"
 #include "net/base/completion_callback.h"
 #include "net/base/net_errors.h"
 #include "net/cookies/cookie_monster.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "net/url_request/url_request_context.h"
 #include "webkit/database/database_tracker.h"
@@ skipping 78 matching lines @@
         quota::kStorageTypeTemporary, base::Time(),
         base::Bind(&ClearQuotaManagedOriginsOnIOThread, quota_manager));
   }
   if (storage_mask & StoragePartition::kQuotaManagedPersistentStorage) {
     quota_manager->GetOriginsModifiedSince(
         quota::kStorageTypePersistent, base::Time(),
         base::Bind(&ClearQuotaManagedOriginsOnIOThread, quota_manager));
   }
 }
 
+void ClearedShaderCacheOnIOThread(base::Closure callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, callback);
+}
+
+void ClearShaderCacheOnIOThread(base::FilePath context_path,
+    base::Time begin, base::Time end, base::Closure callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  ShaderCacheFactory::GetInstance()->ClearByPath(
+      context_path, begin, end,
+      base::Bind(&ClearedShaderCacheOnIOThread, callback));
+}
+
 void OnLocalStorageUsageInfo(
     const scoped_refptr<DOMStorageContextImpl>& dom_storage_context,
     const std::vector<dom_storage::LocalStorageUsageInfo>& infos) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   for (size_t i = 0; i < infos.size(); ++i) {
     dom_storage_context->DeleteLocalStorage(infos[i].origin);
   }
 }
 
 void OnSessionStorageUsageInfo(
     const scoped_refptr<DOMStorageContextImpl>& dom_storage_context,
     const std::vector<dom_storage::SessionStorageUsageInfo>& infos) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   for (size_t i = 0; i < infos.size(); ++i) {
     dom_storage_context->DeleteSessionStorage(infos[i]);
   }
 }
 
 }  // namespace
 
 StoragePartitionImpl::StoragePartitionImpl(
+    const base::FilePath& context_path,

[jam, 2013/03/26 17:04:16]

this makes me wonder, should the shader cache be per browser context, or per
storage paritition?

ajwong: wdyt?

     const base::FilePath& partition_path,
     quota::QuotaManager* quota_manager,
     ChromeAppCacheService* appcache_service,
     fileapi::FileSystemContext* filesystem_context,
     webkit_database::DatabaseTracker* database_tracker,
     DOMStorageContextImpl* dom_storage_context,
     IndexedDBContextImpl* indexed_db_context)
-    : partition_path_(partition_path),
+    : context_path_(context_path),
+      partition_path_(partition_path),
       quota_manager_(quota_manager),
       appcache_service_(appcache_service),
       filesystem_context_(filesystem_context),
       database_tracker_(database_tracker),
       dom_storage_context_(dom_storage_context),
       indexed_db_context_(indexed_db_context) {
 }
 
 StoragePartitionImpl::~StoragePartitionImpl() {
   // These message loop checks are just to avoid leaks in unittests.
@@ skipping 51 matching lines @@
 
   scoped_refptr<IndexedDBContextImpl> indexed_db_context =
       new IndexedDBContextImpl(path, context->GetSpecialStoragePolicy(),
                                quota_manager->proxy(),
                                BrowserThread::GetMessageLoopProxyForThread(
                                    BrowserThread::WEBKIT_DEPRECATED));
 
   scoped_refptr<ChromeAppCacheService> appcache_service =
       new ChromeAppCacheService(quota_manager->proxy());
 
-  return new StoragePartitionImpl(partition_path,
+  return new StoragePartitionImpl(context->GetPath(),
+                                  partition_path,
                                   quota_manager,
                                   appcache_service,
                                   filesystem_context,
                                   database_tracker,
                                   dom_storage_context,
                                   indexed_db_context);
 }
 
 base::FilePath StoragePartitionImpl::GetPath() {
   return partition_path_;
@@ skipping 66 matching lines @@
     dom_storage_context_->GetLocalStorageUsage(
         base::Bind(&OnLocalStorageUsageInfo, dom_storage_context_));
   }
 
   if (storage_mask & kSessionDomStorage) {
     dom_storage_context_->GetSessionStorageUsage(
         base::Bind(&OnSessionStorageUsageInfo, dom_storage_context_));
   }
 }
 
+void StoragePartitionImpl::AsyncClearDataBetween(uint32 storage_mask,
+      const base::Time& begin, const base::Time& end,
+      const base::Closure& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK(storage_mask == kShaderStorage);
+
+  if (storage_mask & kShaderStorage) {
+    BrowserThread::PostTask(
+        BrowserThread::IO, FROM_HERE,
+        base::Bind(&ClearShaderCacheOnIOThread, context_path_, begin, end,
+            callback));
+  }
+}
+
 void StoragePartitionImpl::SetURLRequestContext(
     net::URLRequestContextGetter* url_request_context) {
   url_request_context_ = url_request_context;
 }
 
 void StoragePartitionImpl::SetMediaURLRequestContext(
     net::URLRequestContextGetter* media_url_request_context) {
   media_url_request_context_ = media_url_request_context;
 }
 
 }  // namespace content