[M116] Add InterstitialInteractionMap parameter to CSBRR functions

As part of implementing interaction lists for CSBRRs, we must add a
parameter to the trigger manager's FinishCollectingThreatDetails method
that allows us to access the list of interstitial interactions. Once we
submit this, we will submit a CL that adds the actual interaction list
to CSBRRs.

(cherry picked from commit fb73314)

Bug: 1439670
Change-Id: Ifd31cbd57f6edd5fa6b0dbb248685c5d812ca546
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4621748
Commit-Queue: Sarah Krakowiak <skrakowi@chromium.org>
Reviewed-by: Daniel Rubery <drubery@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#1161399}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4645789
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/5845@{#104}
Cr-Branched-From: 5a5dff6-refs/heads/main@{#1160321}

components/safe_browsing/content/browser/triggers/trigger_manager.cc

@@ -193,6 +193,12 @@ bool TriggerManager::StartCollectingThreatDetailsWithReason(
   return true;
 }
 
+void TriggerManager::SetInterstitialInteractions(
+    std::unique_ptr<security_interstitials::InterstitialInteractionMap>
+        interstitial_interactions) {
+  interstitial_interactions_ = std::move(interstitial_interactions);
+}
+
 bool TriggerManager::FinishCollectingThreatDetails(
     const TriggerType trigger_type,
     WebContentsKey web_contents_key,

components/safe_browsing/content/browser/triggers/trigger_manager.h

@@ -149,6 +149,12 @@ class TriggerManager {
       ReferrerChainProvider* referrer_chain_provider,
       const SBErrorOptions& error_display_options);
 
+  // Store map of security interstitial interactions that should be sent in the
+  // threat report.
+  void SetInterstitialInteractions(
+      std::unique_ptr<security_interstitials::InterstitialInteractionMap>
+          interstitial_interactions);
+
   // Completes the collection of a ThreatDetails report for the specified
   // |web_contents_key| (derived from a WebContents*) and sends the
   // report. |delay| can be used to wait a period of time before finishing the
@@ -195,6 +201,10 @@ class TriggerManager {
   // Keeps track of how often triggers fire and throttles them when needed.
   std::unique_ptr<TriggerThrottler> trigger_throttler_;
 
+  // Keeps track of user interactions with a security interstitial.
+  std::unique_ptr<security_interstitials::InterstitialInteractionMap>
+      interstitial_interactions_;
+
   base::WeakPtrFactory<TriggerManager> weak_factory_{this};
   // WeakPtrFactory should be last, don't add any members below it.
 };

components/security_interstitials/core/base_safe_browsing_error_ui.h

@@ -5,6 +5,8 @@
 #ifndef COMPONENTS_SECURITY_INTERSTITIALS_CORE_BASE_SAFE_BROWSING_ERROR_UI_H_
 #define COMPONENTS_SECURITY_INTERSTITIALS_CORE_BASE_SAFE_BROWSING_ERROR_UI_H_
 
+#include <map>
+
 #include "base/memory/raw_ptr.h"
 #include "base/time/time.h"
 #include "base/values.h"
@@ -13,6 +15,18 @@
 
 namespace security_interstitials {
 
+struct InterstitialInteractionDetails {
+  InterstitialInteractionDetails(int occurrence_count,
+                                 int64_t first_timestamp,
+                                 int64_t last_timestamp);
+  int occurrence_count;
+  int64_t first_timestamp;
+  int64_t last_timestamp;
+};
+
+using InterstitialInteractionMap =
+    std::map<SecurityInterstitialCommand, InterstitialInteractionDetails>;
+
 // A base class for quiet vs loud versions of the safe browsing interstitial.
 // This class displays UI for Safe Browsing errors that block page loads. This
 // class is purely about visual display; it does not do any error-handling logic