- Support runtime configuration of renderer-related preferences (issue #1501).

- Persist modified user preferences including per-host zoom settings when a
  cache_path value is specified and persist_user_preferences is set to true
  via CefSettings or CefRequestContextSettings.
- Avoid the need to duplicate files from chrome/ by having CefBrowserContext
  extend Chrome's Profile class.

tests/cefclient/browser/preferences_test.cc

@@ -196,6 +196,11 @@ class Handler : public CefMessageRouterBrowserSide::Handler {
         command_line->HasSwitch("proxy-pac-url") ||
         command_line->HasSwitch("proxy-server"));
 
+    // If allow running insecure content is enabled via the command-line then it
+    // cannot be enabled via preferences.
+    dict->SetBool("allow_running_insecure_content",
+        command_line->HasSwitch("allow-running-insecure-content"));
+
     // Serialize the state to JSON and return to the JavaScript caller.
     callback->Success(GetJSON(dict));
   }

tests/cefclient/resources/preferences.html

@@ -32,6 +32,12 @@
             <input type="checkbox" id="enable_spellchecking"/> Enable spell checking
           </td>
         </tr>
+        <tr>
+          <td>
+            <br/>
+            <input type="checkbox" id="allow_running_insecure_content"/> Allow running insecure content
+          </td>
+        </tr>
         <tr>
           <td>
             <br/>
@@ -214,6 +220,19 @@
               response.browser.enable_spellchecking;
         }
 
+        // Web content settings.
+        if (preferences_state.allow_running_insecure_content) {
+          // Cannot disable running insecure content when enabled via the
+          // command-line.
+          document.getElementById("allow_running_insecure_content").checked =
+              true;
+          document.getElementById("allow_running_insecure_content").disabled =
+              true;
+        } else {
+          document.getElementById("allow_running_insecure_content").checked =
+              response.webkit.webprefs.allow_running_insecure_content;
+        }
+
         // Proxy settings.
         document.getElementById("proxy_type").value = response.proxy.mode;
 
@@ -252,6 +271,16 @@
             document.getElementById("enable_spellchecking").checked;
       }
 
+      // Web content settings.
+      if (!preferences_state.allow_running_insecure_content) {
+        has_preferences = true;
+
+        preferences.webkit = {};
+        preferences.webkit.webprefs = {};
+        preferences.webkit.webprefs.allow_running_insecure_content =
+            document.getElementById("allow_running_insecure_content").checked;
+      }
+
       // Proxy settings.
       if (!preferences_state.proxy_configured) {
         has_preferences = true;