Change "insecure" to "not secure"/"non-secure" in DevTools.

third_party/WebKit/Source/devtools/front_end/security/SecurityPanel.js

Index: third_party/WebKit/Source/devtools/front_end/security/SecurityPanel.js
diff --git a/third_party/WebKit/Source/devtools/front_end/security/SecurityPanel.js b/third_party/WebKit/Source/devtools/front_end/security/SecurityPanel.js
index b5237803e52709dcd15fb2748416a4a5df6c2a8b..680325b369653ab9de5718f8e09416f2db04fab1 100644
--- a/third_party/WebKit/Source/devtools/front_end/security/SecurityPanel.js
+++ b/third_party/WebKit/Source/devtools/front_end/security/SecurityPanel.js
@@ -613,7 +613,7 @@ WebInspector.SecurityMainView = function(panel)
     var lockSpectrum = this._summarySection.createChild("div", "lock-spectrum");
     lockSpectrum.createChild("div", "lock-icon lock-icon-secure").title = WebInspector.UIString("Secure");
     lockSpectrum.createChild("div", "lock-icon lock-icon-neutral").title = WebInspector.UIString("Not Secure");
-    lockSpectrum.createChild("div", "lock-icon lock-icon-insecure").title = WebInspector.UIString("Insecure (Broken)");
+    lockSpectrum.createChild("div", "lock-icon lock-icon-insecure").title = WebInspector.UIString("Not Secure (Broken)");
 
     this._summarySection.createChild("div", "triangle-pointer-container").createChild("div", "triangle-pointer-wrapper").createChild("div", "triangle-pointer");
 
@@ -660,7 +660,7 @@ WebInspector.SecurityMainView.prototype = {
         this._summarySection.classList.add("security-summary-" + this._securityState);
         var summaryExplanationStrings = {
             "unknown":  WebInspector.UIString("The security of this page is unknown."),
-            "insecure": WebInspector.UIString("This page is insecure (broken HTTPS)."),
+            "insecure": WebInspector.UIString("This page is not secure (broken HTTPS)."),
             "neutral":  WebInspector.UIString("This page is not secure."),
             "secure":   WebInspector.UIString("This page is secure (valid HTTPS).")
         }
@@ -708,13 +708,13 @@ WebInspector.SecurityMainView.prototype = {
 
         if (this._insecureContentStatus && (this._insecureContentStatus.ranMixedContent || this._insecureContentStatus.displayedMixedContent)) {
             if (this._insecureContentStatus.ranMixedContent)
-                this._addMixedContentExplanation(this._securityExplanationsMain, this._insecureContentStatus.ranInsecureContentStyle, WebInspector.UIString("Active Mixed Content"), WebInspector.UIString("You have recently allowed insecure content (such as scripts or iframes) to run on this site."), WebInspector.NetworkLogView.MixedContentFilterValues.BlockOverridden, showBlockOverriddenMixedContentInNetworkPanel);
+                this._addMixedContentExplanation(this._securityExplanationsMain, this._insecureContentStatus.ranInsecureContentStyle, WebInspector.UIString("Active Mixed Content"), WebInspector.UIString("You have recently allowed non-secure content (such as scripts or iframes) to run on this site."), WebInspector.NetworkLogView.MixedContentFilterValues.BlockOverridden, showBlockOverriddenMixedContentInNetworkPanel);
             if (this._insecureContentStatus.displayedMixedContent)
                 this._addMixedContentExplanation(this._securityExplanationsMain, this._insecureContentStatus.displayedInsecureContentStyle, WebInspector.UIString("Mixed Content"), WebInspector.UIString("The site includes HTTP resources."), WebInspector.NetworkLogView.MixedContentFilterValues.Displayed, showDisplayedMixedContentInNetworkPanel);
         }
 
         if (this._panel.filterRequestCount(WebInspector.NetworkLogView.MixedContentFilterValues.Blocked) > 0)
-            this._addMixedContentExplanation(this._securityExplanationsExtra, SecurityAgent.SecurityState.Info, WebInspector.UIString("Blocked mixed content"), WebInspector.UIString("Your page requested insecure resources that were blocked."), WebInspector.NetworkLogView.MixedContentFilterValues.Blocked, showBlockedMixedContentInNetworkPanel);
+            this._addMixedContentExplanation(this._securityExplanationsExtra, SecurityAgent.SecurityState.Info, WebInspector.UIString("Blocked mixed content"), WebInspector.UIString("Your page requested non-secure resources that were blocked."), WebInspector.NetworkLogView.MixedContentFilterValues.Blocked, showBlockedMixedContentInNetworkPanel);
 
         /**
          * @param {!Event} e