Add missing histogram values for <webview>'s WebRequest API events.

This prevents hitting NOTREACHED() when calling .addListener on those
  events.

BUG=528853
Test=Hangouts app should work in debug chromium. See bug for details.

Review URL: https://codereview.chromium.org/1315713010

Cr-Commit-Position: refs/heads/master@{#348211}

3 files changed, 25 insertions, 6 deletions

diff --git a/extensions/browser/guest_view/guest_view_events.cc b/extensions/browser/guest_view/guest_view_events.cc
index 843083b..933134d 100644
--- a/extensions/browser/guest_view/guest_view_events.cc
+++ b/extensions/browser/guest_view/guest_view_events.cc
@@ -73,6 +73,13 @@ class EventMap {
         {webview::kEventUnresponsive,
          events::WEB_VIEW_INTERNAL_ON_UNRESPONSIVE},
         {webview::kEventZoomChange, events::WEB_VIEW_INTERNAL_ON_ZOOM_CHANGE},
+        {webview::kEventAuthRequired,
+         events::WEB_VIEW_INTERNAL_ON_AUTH_REQUIRED},
+        {webview::kEventBeforeRedirect,
+         events::WEB_VIEW_INTERNAL_ON_BEFORE_REDIRECT},
+        {webview::kEventErrorOccurred,
+         events::WEB_VIEW_INTERNAL_ON_ERROR_OCCURRED},
+        {webview::kEventSendHeaders, events::WEB_VIEW_INTERNAL_ON_SEND_HEADERS},
     };
     for (const auto& name_and_value : names_and_values) {
       values_[name_and_value.name] = name_and_value.value;
diff --git a/extensions/browser/guest_view/web_view/web_view_constants.cc b/extensions/browser/guest_view/web_view/web_view_constants.cc
index 52834fa..fff62e8 100644
--- a/extensions/browser/guest_view/web_view/web_view_constants.cc
+++ b/extensions/browser/guest_view/web_view/web_view_constants.cc
@@ -21,10 +21,7 @@ const char kAPILoadDataInvalidBaseURL[] = "Invalid base URL \"%s\".";
 const char kAPILoadDataInvalidVirtualURL[] = "Invalid virtual URL \"%s\".";
 
 // Events.
-const char kEventBeforeRequest[] = "webViewInternal.onBeforeRequest";
-const char kEventBeforeSendHeaders[] = "webViewInternal.onBeforeSendHeaders";
 const char kEventClose[] = "webViewInternal.onClose";
-const char kEventCompleted[] = "webViewInternal.onCompleted";
 const char kEventConsoleMessage[] = "webViewInternal.onConsoleMessage";
 const char kEventContentLoad[] = "webViewInternal.onContentLoad";
 const char kEventContextMenuShow[] = "chromeWebViewInternal.onContextMenuShow";
@@ -50,6 +47,15 @@ const char kEventSizeChanged[] = "webViewInternal.onSizeChanged";
 const char kEventUnresponsive[] = "webViewInternal.onUnresponsive";
 const char kEventZoomChange[] = "webViewInternal.onZoomChange";
 
+// WebRequest API events.
+const char kEventAuthRequired[] = "webViewInternal.onAuthRequired";
+const char kEventBeforeRedirect[] = "webViewInternal.onBeforeRedirect";
+const char kEventBeforeRequest[] = "webViewInternal.onBeforeRequest";
+const char kEventBeforeSendHeaders[] = "webViewInternal.onBeforeSendHeaders";
+const char kEventCompleted[] = "webViewInternal.onCompleted";
+const char kEventErrorOccurred[] = "webViewInternal.onErrorOccurred";
+const char kEventSendHeaders[] = "webViewInternal.onSendHeaders";
+
 // Event related constants.
 const char kWebViewEventPrefix[] = "webViewInternal.";
 
diff --git a/extensions/browser/guest_view/web_view/web_view_constants.h b/extensions/browser/guest_view/web_view/web_view_constants.h
index 7bc877b..17b1517 100644
--- a/extensions/browser/guest_view/web_view/web_view_constants.h
+++ b/extensions/browser/guest_view/web_view/web_view_constants.h
@@ -27,10 +27,7 @@ extern const char kAPILoadDataInvalidBaseURL[];
 extern const char kAPILoadDataInvalidVirtualURL[];
 
 // Events.
-extern const char kEventBeforeRequest[];
-extern const char kEventBeforeSendHeaders[];
 extern const char kEventClose[];
-extern const char kEventCompleted[];
 extern const char kEventConsoleMessage[];
 extern const char kEventContentLoad[];
 extern const char kEventContextMenuShow[];
@@ -56,6 +53,15 @@ extern const char kEventSizeChanged[];
 extern const char kEventUnresponsive[];
 extern const char kEventZoomChange[];
 
+// WebRequest API events.
+extern const char kEventAuthRequired[];
+extern const char kEventBeforeRedirect[];
+extern const char kEventBeforeRequest[];
+extern const char kEventBeforeSendHeaders[];
+extern const char kEventCompleted[];
+extern const char kEventErrorOccurred[];
+extern const char kEventSendHeaders[];
+
 // Event related constants.
 extern const char kWebViewEventPrefix[];