Backend for DevTools quota managements.

content/browser/devtools/renderer_overrides_handler.cc

Index: content/browser/devtools/renderer_overrides_handler.cc
diff --git a/content/browser/devtools/renderer_overrides_handler.cc b/content/browser/devtools/renderer_overrides_handler.cc
index fe35d3029b3e7c2a18f55c5248e088b94b4ca38c..90120fc6024bc19f2dd57c9387bfdbd2bb5360b1 100644
--- a/content/browser/devtools/renderer_overrides_handler.cc
+++ b/content/browser/devtools/renderer_overrides_handler.cc
@@ -6,6 +6,7 @@
 
 #include <string>
 
+#include "base/barrier_closure.h"
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ -28,17 +29,20 @@
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view.h"
+#include "content/public/browser/storage_partition.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "content/public/common/page_transition_types.h"
 #include "content/public/common/referrer.h"
 #include "ipc/ipc_sender.h"
+#include "net/base/net_util.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "ui/gfx/codec/jpeg_codec.h"
 #include "ui/gfx/codec/png_codec.h"
 #include "ui/gfx/size_conversions.h"
 #include "ui/snapshot/snapshot.h"
 #include "url/gurl.h"
+#include "webkit/browser/quota/quota_manager.h"
 
 using WebKit::WebGestureEvent;
 using WebKit::WebInputEvent;
@@ -122,6 +126,11 @@ RendererOverridesHandler::RendererOverridesHandler(DevToolsAgentHost* agent)
           &RendererOverridesHandler::PageStopScreencast,
           base::Unretained(this)));
   RegisterCommandHandler(
+      devtools::Page::queryUsageAndQuota::kName,
+      base::Bind(
+          &RendererOverridesHandler::PageQueryUsageAndQuota,
+          base::Unretained(this)));
+  RegisterCommandHandler(
       devtools::Input::dispatchMouseEvent::kName,
       base::Bind(
           &RendererOverridesHandler::InputDispatchMouseEvent,
@@ -525,6 +534,187 @@ void RendererOverridesHandler::ScreenshotCaptured(
   }
 }
 
+// Quota and Usage ------------------------------------------
+
+namespace {
+
+typedef base::Callback<void(scoped_ptr<base::DictionaryValue>)>
+    ResponseCallback;
+
+void QueryUsageAndQuotaCompletedOnIOThread(
+    scoped_ptr<base::DictionaryValue> quota,
+    scoped_ptr<base::ListValue> temporaryStorageUsage,
+    scoped_ptr<base::ListValue> persistentStorageUsage,
+    scoped_ptr<base::ListValue> syncableStorageUsage,
+    ResponseCallback callback) {
+
+  scoped_ptr<base::DictionaryValue> response_data(new base::DictionaryValue);
+  response_data->Set(devtools::Page::queryUsageAndQuota::kResponseQuota,
+                     quota.release());
+
+  scoped_ptr<base::DictionaryValue> usage(new base::DictionaryValue);
+  usage->Set(devtools::Page::Usage::kItemTemporary,
+             temporaryStorageUsage.release());
+  usage->Set(devtools::Page::Usage::kItemPersistent,
+             persistentStorageUsage.release());
+  usage->Set(devtools::Page::Usage::kItemSyncable,
+             syncableStorageUsage.release());
+  response_data->Set(devtools::Page::queryUsageAndQuota::kResponseUsage,
+                     usage.release());
+
+  BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      base::Bind(callback, base::Passed(&response_data)));
+}
+
+void DidGetHostUsage(
+    base::ListValue* list,
+    const char* client_id,
+    const base::Closure& barrier,
+    int64 value) {
+  base::DictionaryValue* usage_item = new base::DictionaryValue;
+  usage_item->SetString(devtools::Page::UsageItem::kItemID, client_id);

[pfeldman, 2013/09/20 13:26:25]

You could attach usage lists lazily and get rid of manual creation / lots of
code below:

base::ListValue* usage_list;
if (!usage->GetList(usage_type, &usage_list)) {
  usage_list = new base::ListValue();
  usage->Set(usage_type, usage_list);
}

[SeRya, 2013/09/20 19:39:40]

Now I create in a loop.

+  usage_item->SetDouble(devtools::Page::UsageItem::kItemValue, value);
+  list->Append(usage_item);
+  barrier.Run();
+}
+
+void DidGetQuotaValue(
+    base::DictionaryValue* dictionary,
+    const char* item_name,
+    const base::Closure& barrier,
+    quota::QuotaStatusCode status,
+    int64 value) {
+  if (status == quota::kQuotaStatusOk)
+    dictionary->SetDouble(item_name, value);
+  barrier.Run();
+}
+
+void DidGetUsageAndQuotaForWebApps(
+    base::DictionaryValue* quota,
+    const char* item_name,
+    const base::Closure& barrier,
+    quota::QuotaStatusCode status,
+    int64 used_bytes,
+    int64 quota_in_bytes) {
+  if (status == quota::kQuotaStatusOk)
+    quota->SetDouble(item_name, quota_in_bytes);
+  barrier.Run();
+}
+
+void QueryUsageAndQuotaOnIOThread(
+    scoped_refptr<quota::QuotaManager> quota_manager,
+    const GURL& security_origin,
+    const ResponseCallback& callback) {
+  base::ListValue* temporaryStorageUsage = new base::ListValue;

[pfeldman, 2013/09/20 13:26:25]

You should create them as scoped_ptr<>s

[SeRya, 2013/09/20 19:39:40]

Done.

+  base::ListValue* persistentStorageUsage = new base::ListValue;
+  base::ListValue* syncableStorageUsage = new base::ListValue;
+  base::DictionaryValue* quota = new base::DictionaryValue;
+
+  static const int kExpectedResults = 8;
+
+  // Takes owneship on usage and quota.
+  base::Closure barrier = BarrierClosure(
+      kExpectedResults,
+      base::Bind(&QueryUsageAndQuotaCompletedOnIOThread,
+                 base::Passed(scoped_ptr<base::DictionaryValue>(quota)),
+                 base::Passed(scoped_ptr<base::ListValue>(
+                     temporaryStorageUsage)),
+                 base::Passed(scoped_ptr<base::ListValue>(
+                     persistentStorageUsage)),
+                 base::Passed(scoped_ptr<base::ListValue>(
+                     syncableStorageUsage)),
+                 callback));
+  std::string host = net::GetHostOrSpecFromURL(security_origin);
+
+  quota_manager->GetUsageAndQuotaForWebApps(
+      security_origin,
+      quota::kStorageTypeTemporary,
+      base::Bind(&DidGetUsageAndQuotaForWebApps, quota,
+                 devtools::Page::Quota::kItemTemporary, barrier));
+
+  quota_manager->GetPersistentHostQuota(
+      host,
+      base::Bind(&DidGetQuotaValue, quota,
+                 devtools::Page::Quota::kItemPersistent,
+                 barrier));
+
+  quota_manager->GetHostUsage(host, quota::kStorageTypeTemporary,
+      quota::QuotaClient::kFileSystem,
+      base::Bind(&DidGetHostUsage, temporaryStorageUsage,
+                 devtools::Page::UsageItem::ID::kFilesystem,
+                 barrier));
+
+  quota_manager->GetHostUsage(host, quota::kStorageTypePersistent,
+      quota::QuotaClient::kFileSystem,
+      base::Bind(&DidGetHostUsage, persistentStorageUsage,
+                 devtools::Page::UsageItem::ID::kFilesystem,
+                 barrier));
+
+  quota_manager->GetHostUsage(host, quota::kStorageTypeSyncable,
+      quota::QuotaClient::kFileSystem,
+      base::Bind(&DidGetHostUsage, syncableStorageUsage,
+                 devtools::Page::UsageItem::ID::kFilesystem,
+                 barrier));
+
+  quota_manager->GetHostUsage(host, quota::kStorageTypeTemporary,
+      quota::QuotaClient::kDatabase,
+      base::Bind(&DidGetHostUsage, temporaryStorageUsage,
+                 devtools::Page::UsageItem::ID::kDatabase,
+                 barrier));
+
+  quota_manager->GetHostUsage(host, quota::kStorageTypeTemporary,
+      quota::QuotaClient::kAppcache,
+      base::Bind(&DidGetHostUsage, temporaryStorageUsage,
+                 devtools::Page::UsageItem::ID::kAppcache,
+                 barrier));
+
+  quota_manager->GetHostUsage(host, quota::kStorageTypeTemporary,
+      quota::QuotaClient::kIndexedDatabase,
+      base::Bind(&DidGetHostUsage, temporaryStorageUsage,
+                 devtools::Page::UsageItem::ID::kIndexedDatabase,
+                 barrier));
+}
+
+} // namespace
+
+scoped_refptr<DevToolsProtocol::Response>
+RendererOverridesHandler::PageQueryUsageAndQuota(
+    scoped_refptr<DevToolsProtocol::Command> command) {
+  base::DictionaryValue* params = command->params();
+  std::string security_origin;
+  if (!params || !params->GetString(
+      devtools::Page::queryUsageAndQuota::kParamSecurityOrigin,
+      &security_origin)) {
+    return command->InvalidParamResponse(
+        devtools::Page::queryUsageAndQuota::kParamSecurityOrigin);
+  }
+
+  ResponseCallback callback = base::Bind(
+      &RendererOverridesHandler::PageQueryUsageAndQuotaCompleted,
+      weak_factory_.GetWeakPtr(),
+      command);
+
+  scoped_refptr<quota::QuotaManager> quota_manager =
+      agent_->GetRenderViewHost()->GetProcess()->
+          GetStoragePartition()->GetQuotaManager();
+
+  BrowserThread::PostTask(
+      BrowserThread::IO, FROM_HERE,
+      base::Bind(
+          &QueryUsageAndQuotaOnIOThread,
+          quota_manager,
+          GURL(security_origin),
+          callback));
+
+  return command->AsyncResponsePromise();
+}
+
+void RendererOverridesHandler::PageQueryUsageAndQuotaCompleted(
+    scoped_refptr<DevToolsProtocol::Command> command,
+    scoped_ptr<base::DictionaryValue> response_data) {
+  SendAsyncResponse(command->SuccessResponse(response_data.release()));
+}
 
 // Input agent handlers  ------------------------------------------------------