Display an error message on usage settings page when proxy cannot be contacted.

Add data_reduction_proxy_usage_stats which keeps track of number of requests
completed through data reduction proxy vs number of requests eligible to use
data reduction proxy. Instantiate and set on io thread globals so that we can
pass it to chrome network delegate. Expose isDataReductionProxyUnreachable()
method to Android code through DataReductionProxySettings where it will be
used to decide whether to display the unreachable proxy message.

BUG=380195

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=279222

Review URL: https://codereview.chromium.org/338273003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@279583 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 10 insertions, 0 deletions

diff --git a/chrome/android/java/src/org/chromium/chrome/browser/net/spdyproxy/DataReductionProxySettings.java b/chrome/android/java/src/org/chromium/chrome/browser/net/spdyproxy/DataReductionProxySettings.java
index 4444a6f..f5aa307 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/net/spdyproxy/DataReductionProxySettings.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/net/spdyproxy/DataReductionProxySettings.java
@@ -179,6 +179,14 @@ public class DataReductionProxySettings {
     }
 
     /**
+     * Determines if the data reduction proxy is currently unreachable.
+     * @return true if the data reduction proxy is unreachable.
+     */
+    public boolean isDataReductionProxyUnreachable() {
+        return nativeIsDataReductionProxyUnreachable(mNativeDataReductionProxySettings);
+    }
+
+    /**
      * @return The data reduction settings as a string percentage.
      */
     public String getContentLengthPercentSavings() {
@@ -221,4 +229,6 @@ public class DataReductionProxySettings {
             long nativeDataReductionProxySettingsAndroid);
     private native long[] nativeGetDailyReceivedContentLengths(
             long nativeDataReductionProxySettingsAndroid);
+    private native boolean nativeIsDataReductionProxyUnreachable(
+            long nativeDataReductionProxySettingsAndroid);
 }