Printing API: Introduce quotas for submitJob() and getPrinterInfo()

As far as these methods are computationally intensive we want to add
quotas for them.

Bug: 996785
Change-Id: I8573d39fa3d6388b97de08636a3997d51a768a5d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2007812Reviewed-by: Sean Kau <skau@chromium.org>
Reviewed-by: Devlin <rdevlin.cronin@chromium.org>
Commit-Queue: Nikita Podguzov <nikitapodguzov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#738154}

chrome/browser/chromeos/extensions/printing/printing_api.cc

@@ -9,11 +9,22 @@
 #include "base/bind.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/extensions/printing/printing_api_handler.h"
+#include "extensions/browser/quota_service.h"
 
 namespace extensions {
 
 PrintingSubmitJobFunction::~PrintingSubmitJobFunction() = default;
 
+void PrintingSubmitJobFunction::GetQuotaLimitHeuristics(
+    QuotaLimitHeuristics* heuristics) const {
+  QuotaLimitHeuristic::Config config = {
+      api::printing::MAX_SUBMIT_JOB_CALLS_PER_MINUTE,
+      base::TimeDelta::FromMinutes(1)};
+  heuristics->push_back(std::make_unique<QuotaService::TimedLimit>(
+      config, std::make_unique<QuotaLimitHeuristic::SingletonBucketMapper>(),
+      "MAX_SUBMIT_JOB_CALLS_PER_MINUTE"));
+}
+
 ExtensionFunction::ResponseAction PrintingSubmitJobFunction::Run() {
   std::unique_ptr<api::printing::SubmitJob::Params> params(
       api::printing::SubmitJob::Params::Create(*args_));
@@ -65,6 +76,16 @@ ExtensionFunction::ResponseAction PrintingGetPrintersFunction::Run() {
 
 PrintingGetPrinterInfoFunction::~PrintingGetPrinterInfoFunction() = default;
 
+void PrintingGetPrinterInfoFunction::GetQuotaLimitHeuristics(
+    QuotaLimitHeuristics* heuristics) const {
+  QuotaLimitHeuristic::Config config = {
+      api::printing::MAX_GET_PRINTER_INFO_CALLS_PER_MINUTE,
+      base::TimeDelta::FromMinutes(1)};
+  heuristics->push_back(std::make_unique<QuotaService::TimedLimit>(
+      config, std::make_unique<QuotaLimitHeuristic::SingletonBucketMapper>(),
+      "MAX_GET_PRINTER_INFO_CALLS_PER_MINUTE"));
+}
+
 ExtensionFunction::ResponseAction PrintingGetPrinterInfoFunction::Run() {
   std::unique_ptr<api::printing::GetPrinterInfo::Params> params(
       api::printing::GetPrinterInfo::Params::Create(*args_));

chrome/browser/chromeos/extensions/printing/printing_api.h

@@ -24,6 +24,7 @@ class PrintingSubmitJobFunction : public ExtensionFunction {
   ~PrintingSubmitJobFunction() override;
 
   // ExtensionFunction:
+  void GetQuotaLimitHeuristics(QuotaLimitHeuristics* heuristics) const override;
   ResponseAction Run() override;
 
  private:
@@ -61,6 +62,7 @@ class PrintingGetPrinterInfoFunction : public ExtensionFunction {
   ~PrintingGetPrinterInfoFunction() override;
 
   // ExtensionFunction:
+  void GetQuotaLimitHeuristics(QuotaLimitHeuristics* heuristics) const override;
   ResponseAction Run() override;
 
  private:

chrome/common/extensions/api/printing.idl

@@ -168,6 +168,16 @@ namespace printing {
                                GetPrinterInfoCallback callback);
   };
 
+  interface Properties {
+    // The maximum number of times that $(ref:submitJob) can be called per
+    // minute.
+    [value=20] static long MAX_SUBMIT_JOB_CALLS_PER_MINUTE();
+
+    // The maximum number of times that $(ref:getPrinterInfo) can be called per
+    // minute.
+    [value=20] static long MAX_GET_PRINTER_INFO_CALLS_PER_MINUTE();
+  };
+
   interface Events {
     // Event fired when the status of the job is changed.
     // This is only fired for the jobs created by this extension.