Make all quota-exceeding messages in the storage API explain what the failure

chrome/browser/extensions/api/web_request/web_request_api.cc

Index: chrome/browser/extensions/api/web_request/web_request_api.cc
diff --git a/chrome/browser/extensions/api/web_request/web_request_api.cc b/chrome/browser/extensions/api/web_request/web_request_api.cc
index 665c484b212ed1beece388d12a8f85dffbf10f74..74d9a1af5c48ff79a2e9c4037fd1a2f3fe3f60ba 100644
--- a/chrome/browser/extensions/api/web_request/web_request_api.cc
+++ b/chrome/browser/extensions/api/web_request/web_request_api.cc
@@ -31,6 +31,7 @@
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/renderer_host/chrome_render_message_filter.h"
 #include "chrome/browser/renderer_host/web_cache_manager.h"
+#include "chrome/common/extensions/api/web_request.h"
 #include "chrome/common/extensions/event_filtering_info.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_constants.h"
@@ -59,6 +60,7 @@ using extensions::web_navigation_api_helpers::GetFrameId;
 
 namespace helpers = extension_web_request_api_helpers;
 namespace keys = extension_web_request_api_constants;
+namespace web_request = extensions::api::web_request;
 
 namespace {
 
@@ -1557,7 +1559,10 @@ void ExtensionWebRequestEventRouter::ClearSignaled(uint64 request_id,
 class ClearCacheQuotaHeuristic : public QuotaLimitHeuristic {
  public:
   ClearCacheQuotaHeuristic(const Config& config, BucketMapper* map)
-      : QuotaLimitHeuristic(config, map),
+      : QuotaLimitHeuristic(
+            config,
+            map,
+            "MAX_HANDLER_BEHAVIOR_CHANGED_CALLS_PER_10_MINUTES"),
         callback_registered_(false),
         weak_ptr_factory_(this) {}
   virtual ~ClearCacheQuotaHeuristic() {}
@@ -1791,8 +1796,9 @@ bool WebRequestEventHandled::RunImpl() {
 void WebRequestHandlerBehaviorChanged::GetQuotaLimitHeuristics(
     QuotaLimitHeuristics* heuristics) const {
   QuotaLimitHeuristic::Config config = {
-    20,                               // Refill 20 tokens per interval.
-    base::TimeDelta::FromMinutes(10)  // 10 minutes refill interval.
+    // See web_request.json for current value.
+    web_request::MAX_HANDLER_BEHAVIOR_CHANGED_CALLS_PER_10_MINUTES,
+    base::TimeDelta::FromMinutes(10)
   };
   QuotaLimitHeuristic::BucketMapper* bucket_mapper =
       new QuotaLimitHeuristic::SingletonBucketMapper();
@@ -1801,7 +1807,8 @@ void WebRequestHandlerBehaviorChanged::GetQuotaLimitHeuristics(
   heuristics->push_back(heuristic);
 }
 
-void WebRequestHandlerBehaviorChanged::OnQuotaExceeded() {
+void WebRequestHandlerBehaviorChanged::OnQuotaExceeded(
+    const std::string& violation_error) {
   // Post warning message.
   std::set<std::string> extension_ids;
   extension_ids.insert(extension_id());