[DRP] Consistently use LoFi for an entire page

components/data_reduction_proxy/core/browser/data_reduction_proxy_request_options.h

Index: components/data_reduction_proxy/core/browser/data_reduction_proxy_request_options.h
diff --git a/components/data_reduction_proxy/core/browser/data_reduction_proxy_request_options.h b/components/data_reduction_proxy/core/browser/data_reduction_proxy_request_options.h
index 240eed6983cc24ad9c3d434ea22cc27f30633dac..ac0eef4a1253f60cbd053e04b0dc1efdd0bc0c7d 100644
--- a/components/data_reduction_proxy/core/browser/data_reduction_proxy_request_options.h
+++ b/components/data_reduction_proxy/core/browser/data_reduction_proxy_request_options.h
@@ -93,12 +93,14 @@ class DataReductionProxyRequestOptions {
   void Init();
 
   // Adds a 'Chrome-Proxy' header to |request_headers| with the data reduction
-  // proxy authentication credentials. Only adds this header if the provided
+  // proxy authentication credentials. If |is_lofi_on| is true adds the "q=low"
+  // directive to the header. Only adds this header if the provided
   // |proxy_server| is a data reduction proxy and not the data reduction proxy's
-  // CONNECT server. Must be called on the IO thread.
+  // CONNECT server.
   void MaybeAddRequestHeader(net::URLRequest* request,
                              const net::ProxyServer& proxy_server,
-                             net::HttpRequestHeaders* request_headers);
+                             net::HttpRequestHeaders* request_headers,
+                             bool is_lofi_on);
 
   // Adds a 'Chrome-Proxy' header to |request_headers| with the data reduction
   // proxy authentication credentials. Only adds this header if the provided
@@ -136,7 +138,8 @@ class DataReductionProxyRequestOptions {
 
  protected:
   void SetHeader(const net::URLRequest* request,
-                 net::HttpRequestHeaders* headers);
+                 net::HttpRequestHeaders* headers,
+                 bool is_lofi_on);
 
   // Returns a UTF16 string that's the hash of the configured authentication
   // |key| and |salt|. Returns an empty UTF16 string if no key is configured or
@@ -172,7 +175,7 @@ class DataReductionProxyRequestOptions {
   void UpdateVersion();
 
   // May regenerate the Chrome Proxy header based on changes in Lo-Fi status.
-  void MayRegenerateHeaderBasedOnLoFi(const net::URLRequest* request);
+  void MayRegenerateHeaderBasedOnLoFi(bool is_lofi_on);
 
   // Update the value of the experiments to be run and regenerate the header if
   // necessary.
@@ -190,11 +193,13 @@ class DataReductionProxyRequestOptions {
   // Adds authentication headers only if |expects_ssl| is true and
   // |proxy_server| is a data reduction proxy used for ssl tunneling via
   // HTTP CONNECT, or |expect_ssl| is false and |proxy_server| is a data
-  // reduction proxy for HTTP traffic.
+  // reduction proxy for HTTP traffic. If |is_lofi_on| is true adds the "q=low"
+  // directive to the header.
   void MaybeAddRequestHeaderImpl(const net::URLRequest* request,
                                  const net::HostPortPair& proxy_server,
                                  bool expect_ssl,
-                                 net::HttpRequestHeaders* request_headers);
+                                 net::HttpRequestHeaders* request_headers,
+                                 bool is_lofi_on);
 
   // Regenerates the |header_value_| string which is concatenated to the
   // Chrome-proxy header.