[DevTools] Limit responsive design resize request to width/height only.

Before, if we had not enough space and clipped the page height,
resizing width will also reset height to the clipped size.

BUG=none

Review URL: https://codereview.chromium.org/321513004

git-svn-id: svn://svn.chromium.org/blink/trunk@175687 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/devtools/front_end/ResponsiveDesignView.js

@@ -174,7 +174,7 @@ WebInspector.ResponsiveDesignView.prototype = {
         var cssOffset = this._slowPositionStart ? (event.data.currentPosition - this._slowPositionStart) / 10 + this._slowPositionStart - event.data.startPosition : event.data.currentPosition - event.data.startPosition;
         var dipOffset = Math.round(cssOffset * WebInspector.zoomManager.zoomFactor());
         var newSize = Math.max(this._resizeStartSize + dipOffset, 1);
-        var requested = new Size(this._dipWidth, this._dipHeight);
+        var requested = {};
         if (event.target.isVertical())
             requested.height = newSize;
         else

third_party/WebKit/Source/devtools/front_end/sdk/OverridesSupport.js

@@ -601,11 +601,16 @@ WebInspector.OverridesSupport.prototype = {
 
     _onPageResizerResizeRequested: function(event)
     {
-        var size = /** @type {!Size} */ (event.data);
-        if (size.width !== this.settings.deviceWidth.get())
-            this.settings.deviceWidth.set(size.width);
-        if (size.height !== this.settings.deviceHeight.get())
-            this.settings.deviceHeight.set(size.height);
+        if (typeof event.data.width !== "undefined") {
+            var width = /** @type {number} */ (event.data.width);
+            if (width !== this.settings.deviceWidth.get())
+                this.settings.deviceWidth.set(width);
+        }
+        if (typeof event.data.height !== "undefined") {
+            var height = /** @type {number} */ (event.data.height);
+            if (height !== this.settings.deviceHeight.get())
+                this.settings.deviceHeight.set(height);
+        }
     },
 
     _deviceMetricsChanged: function()