Change how the quota system computes the total poolsize for temporary storage

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index 5660e22e33c06e1a74443f9dd1cb6165df0ea80d..867397b3cbf92df736ec808f28248d611a2eef22 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -46,7 +46,6 @@
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "chrome/browser/defaults.h"
 #include "chrome/browser/download/download_prefs.h"
-#include "chrome/browser/engagement/site_engagement_eviction_policy.h"
 #include "chrome/browser/field_trial_recorder.h"
 #include "chrome/browser/font_family_cache.h"
 #include "chrome/browser/media/webrtc/media_capture_devices_dispatcher.h"
@@ -413,6 +412,8 @@ namespace {
 // thread.
 base::LazyInstance<std::string> g_io_thread_application_locale;
 
+const storage::QuotaSettings* g_default_quota_settings;
+
 #if BUILDFLAG(ENABLE_PLUGINS)
 // TODO(teravest): Add renderer-side API-specific checking for these APIs so
 // that blanket permission isn't granted to all dev channel APIs for these.
@@ -2179,12 +2180,20 @@ ChromeContentBrowserClient::CreateQuotaPermissionContext() {
   return new ChromeQuotaPermissionContext();
 }
 
-std::unique_ptr<storage::QuotaEvictionPolicy>
-ChromeContentBrowserClient::GetTemporaryStorageEvictionPolicy(
-    content::BrowserContext* context) {
-  return SiteEngagementEvictionPolicy::IsEnabled()
-             ? base::MakeUnique<SiteEngagementEvictionPolicy>(context)
-             : nullptr;
+void ChromeContentBrowserClient::GetQuotaSettings(
+    content::BrowserContext* context,
+    content::StoragePartition* partition,
+    const storage::OptionalQuotaSettingsCallback& callback) {
+  if (g_default_quota_settings) {
+    // For debugging tests harness can inject settings.
+    callback.Run(*g_default_quota_settings);
+    return;
+  }
+  content::BrowserThread::PostTaskAndReplyWithResult(
+      content::BrowserThread::FILE, FROM_HERE,
+      base::Bind(&storage::CalculateNominalDynamicSettings,
+                 partition->GetPath(), context->IsOffTheRecord()),
+      callback);
 }
 
 void ChromeContentBrowserClient::AllowCertificateError(
@@ -3425,3 +3434,9 @@ bool ChromeContentBrowserClient::
   return variations::GetVariationParamValue(
              "BrowserScheduler", "RedirectNonUINonIOBrowserThreads") == "true";
 }
+
+//static
+void ChromeContentBrowserClient::SetDefaultQuotaSettingsForTesting(
+    const storage::QuotaSettings* settings) {
+  g_default_quota_settings = settings;
+}