Adds DevTools commands for forced viewport override.

content/browser/devtools/protocol/emulation_handler.cc

Index: content/browser/devtools/protocol/emulation_handler.cc
diff --git a/content/browser/devtools/protocol/emulation_handler.cc b/content/browser/devtools/protocol/emulation_handler.cc
index aa0d798a4336d7408220b2a0aff252774ae86c21..4d5971965a3805e89e39e7fa3b122d2381f8ec86 100644
--- a/content/browser/devtools/protocol/emulation_handler.cc
+++ b/content/browser/devtools/protocol/emulation_handler.cc
@@ -151,7 +151,6 @@ Response EmulationHandler::SetDeviceMetricsOverride(
     const int* position_y,
     const std::unique_ptr<base::DictionaryValue>& screen_orientation) {
   const static int max_size = 10000000;
-  const static double max_scale = 10;
   const static int max_orientation_angle = 360;
 
   if (!host_)
@@ -180,12 +179,6 @@ Response EmulationHandler::SetDeviceMetricsOverride(
   if (device_scale_factor < 0)
     return Response::InvalidParams("deviceScaleFactor must be non-negative");
 
-  if (optional_scale && (*optional_scale <= 0 || *optional_scale > max_scale)) {
-    return Response::InvalidParams(
-        "scale must be positive, not greater than " +
-        base::DoubleToString(max_scale));
-  }
-
   blink::WebScreenOrientationType orientationType =
       blink::WebScreenOrientationUndefined;
   int orientationAngle = 0;
@@ -220,10 +213,6 @@ Response EmulationHandler::SetDeviceMetricsOverride(
   params.deviceScaleFactor = device_scale_factor;
   params.viewSize = blink::WebSize(width, height);
   params.fitToView = fit_window;
-  params.scale = optional_scale ? *optional_scale : 1;
-  params.offset = blink::WebFloatPoint(
-      optional_offset_x ? *optional_offset_x : 0.f,
-      optional_offset_y ? *optional_offset_y : 0.f);
   params.screenOrientationType = orientationType;
   params.screenOrientationAngle = orientationAngle;