Show about:sandbox status in the about:gpu page.

chrome/browser/resources/gpu_internals/browser_bridge.js

Index: chrome/browser/resources/gpu_internals/browser_bridge.js
diff --git a/chrome/browser/resources/gpu_internals/browser_bridge.js b/chrome/browser/resources/gpu_internals/browser_bridge.js
index f47451592cd535214e1aa14542e6a83b9701e101..43d58dc3e1247395e7fe0e2d36f815c112963a00 100644
--- a/chrome/browser/resources/gpu_internals/browser_bridge.js
+++ b/chrome/browser/resources/gpu_internals/browser_bridge.js
@@ -26,6 +26,7 @@ cr.define('gpu', function() {
     if (!this.debugMode_) {
       chrome.send('browserBridgeInitialized');
       this.beginRequestClientInfo_();
+      this.beginRequestSandboxInfo_();
       this.beginRequestLogMessages_();
       this.beginRequestCrashList_();
     }
@@ -38,9 +39,11 @@ cr.define('gpu', function() {
       // set up things according to the simulated data
       this.gpuInfo_ = data.gpuInfo;
       this.clientInfo_ = data.clientInfo;
+      this.sandboxInfo_ = data.sandboxInfo;
       this.logMessages_ = data.logMessages;
       cr.dispatchSimpleEvent(this, 'gpuInfoUpdate');
       cr.dispatchSimpleEvent(this, 'clientInfoChange');
+      cr.dispatchSimpleEvent(this, 'sandboxInfoChange');
       cr.dispatchSimpleEvent(this, 'logMessagesChange');
     },
 
@@ -118,6 +121,28 @@ cr.define('gpu', function() {
     },
 
     /**
+     * This function begins a request for the SandboxInfo. If it comes back
+     * as undefined, then we will issue the request again in 250ms.
+     */
+    beginRequestSandboxInfo_: function() {
+      this.callAsync('requestSandboxInfo', undefined, (function(data) {
+        if (data === undefined) { // try again in 250 ms
+          window.setTimeout(this.beginRequestSandboxInfo_.bind(this), 250);
+        } else {
+          this.sandboxInfo_ = data;
+          cr.dispatchSimpleEvent(this, 'sandboxInfoChange');
+        }
+      }).bind(this));
+    },
+
+    /**
+     * Returns information about the currently runnign Chrome sandbox.
+     */
+    get sandboxInfo() {
+      return this.sandboxInfo_;
+    },
+
+    /**
      * This function checks for new GPU_LOG messages.
      * If any are found, a refresh is triggered.
      */