Pepper quota support

content/renderer/pepper_plugin_delegate_impl.cc

Index: content/renderer/pepper_plugin_delegate_impl.cc
diff --git a/content/renderer/pepper_plugin_delegate_impl.cc b/content/renderer/pepper_plugin_delegate_impl.cc
index 325f3f8fa160c8015556c9f3f98bb0454730de12..df3f848156b021355cf9459e7ea7c81dbdc858c8 100644
--- a/content/renderer/pepper_plugin_delegate_impl.cc
+++ b/content/renderer/pepper_plugin_delegate_impl.cc
@@ -26,6 +26,7 @@
 #include "content/common/pepper_file_messages.h"
 #include "content/common/pepper_plugin_registry.h"
 #include "content/common/pepper_messages.h"
+#include "content/common/quota_dispatcher.h"
 #include "content/common/view_messages.h"
 #include "content/renderer/content_renderer_client.h"
 #include "content/renderer/gpu/command_buffer_proxy.h"
@@ -356,6 +357,26 @@ class DispatcherWrapper
   scoped_ptr<pp::proxy::HostDispatcher> dispatcher_;
 };
 
+class QuotaCallbackTranslator : public QuotaDispatcher::Callback {
+ public:
+  typedef webkit::ppapi::PluginDelegate::QuotaStatusCallback PluginCallback;
+  QuotaCallbackTranslator(int64 requesting_size, PluginCallback* callback)
+      : requesting_size_(requesting_size), callback_(callback) {}
+  virtual void DidQueryStorageUsageAndQuota(int64 usage, int64 quota) OVERRIDE {
+    callback_->Run((quota - usage) >= requesting_size_);
+  }
+  virtual void DidGrantStorageQuota(int64 granted_quota) OVERRIDE {
+    NOTREACHED();
+  }
+  virtual void DidFail(quota::QuotaStatusCode error) OVERRIDE {
+    callback_->Run(false);
+  }
+
+ private:
+  int64_t requesting_size_;
+  scoped_ptr<PluginCallback> callback_;
+};
+
 }  // namespace
 
 bool DispatcherWrapper::Init(
@@ -915,7 +936,7 @@ void PepperPluginDelegateImpl::OnAsyncFileOpened(
       messages_waiting_replies_.Lookup(message_id);
   DCHECK(callback);
   messages_waiting_replies_.Remove(message_id);
-  callback->Run(error_code, base::PassPlatformFile(&file));
+  callback->Run(error_code, base::PassPlatformFile(&file), -1);
   // Make sure we won't leak file handle if the requester has died.
   if (file != base::kInvalidPlatformFileValue)
     base::FileUtilProxy::Close(GetFileThreadMessageLoopProxy(), file, NULL);
@@ -999,6 +1020,21 @@ bool PepperPluginDelegateImpl::ReadDirectory(
   return file_system_dispatcher->ReadDirectory(directory_path, dispatcher);
 }
 
+bool PepperPluginDelegateImpl::CanWrite(
+    const GURL& origin, quota::StorageType type, int64 growth,
+    QuotaStatusCallback* callback) const {
+  ChildThread::current()->quota_dispatcher()->QueryStorageUsageAndQuota(
+      origin, type, new QuotaCallbackTranslator(growth, callback));
+  return true;
+}
+
+void PepperPluginDelegateImpl::NotifyStorageModified(
+    quota::QuotaClient::ID client_id, const GURL& origin,
+    quota::StorageType type, int64 delta) {
+  ChildThread::current()->quota_dispatcher()->NotifyStorageModified(
+      client_id, origin, type, delta);
+}
+
 class AsyncOpenFileSystemURLCallbackTranslator
     : public fileapi::FileSystemCallbackDispatcher {
  public:
@@ -1029,7 +1065,7 @@ class AsyncOpenFileSystemURLCallbackTranslator
 
   virtual void DidFail(base::PlatformFileError error_code) {
     base::PlatformFile invalid_file = base::kInvalidPlatformFileValue;
-    callback_->Run(error_code, base::PassPlatformFile(&invalid_file));
+    callback_->Run(error_code, base::PassPlatformFile(&invalid_file), -1);
   }
 
   virtual void DidWrite(int64 bytes, bool complete) {
@@ -1038,8 +1074,10 @@ class AsyncOpenFileSystemURLCallbackTranslator
 
   virtual void DidOpenFile(
       base::PlatformFile file,
-      base::ProcessHandle unused) {
-    callback_->Run(base::PLATFORM_FILE_OK, base::PassPlatformFile(&file));
+      base::ProcessHandle unused,
+      int64 file_size) {
+    callback_->Run(base::PLATFORM_FILE_OK, base::PassPlatformFile(&file),
+                   file_size);
     // Make sure we won't leak file handle if the requester has died.
     if (file != base::kInvalidPlatformFileValue) {
       base::FileUtilProxy::Close(
@@ -1047,8 +1085,8 @@ class AsyncOpenFileSystemURLCallbackTranslator
     }
   }
 
-private:  // TODO(ericu): Delete this?
-  webkit::ppapi::PluginDelegate::AsyncOpenFileCallback* callback_;
+private:
+  scoped_ptr<webkit::ppapi::PluginDelegate::AsyncOpenFileCallback> callback_;
 };
 
 bool PepperPluginDelegateImpl::AsyncOpenFileSystemURL(