DevTools: Add feature to capture full-height screenshots

third_party/WebKit/Source/devtools/front_end/emulation/DeviceModeModel.js

Index: third_party/WebKit/Source/devtools/front_end/emulation/DeviceModeModel.js
diff --git a/third_party/WebKit/Source/devtools/front_end/emulation/DeviceModeModel.js b/third_party/WebKit/Source/devtools/front_end/emulation/DeviceModeModel.js
index acea052bce094791db15928820f94b6d61d17ff1..e51e17a89bed94434707a8fb5f257c5ebd3780cb 100644
--- a/third_party/WebKit/Source/devtools/front_end/emulation/DeviceModeModel.js
+++ b/third_party/WebKit/Source/devtools/front_end/emulation/DeviceModeModel.js
@@ -273,6 +273,15 @@ Emulation.DeviceModeModel = class {
   }
 
   /**
+   * @return {boolean}
+   */
+  isMobile() {
+    if (this._device && this._device.mobile())
+      return true;
+    return false;

[dgozman, 2017/01/12 21:49:35]

Note this is incorrect for responsive mode.

[ahmetemirercin, 2017/01/13 01:49:23]

Done.

+  }
+
+  /**
    * @return {!Common.Setting}
    */
   scaleSetting() {
@@ -522,7 +531,10 @@ Emulation.DeviceModeModel = class {
     screenSize.height = Math.max(1, Math.floor(screenSize.height));
 
     var pageWidth = screenSize.width - insets.left - insets.right;
+    this._emulatedPageWidth = pageWidth * scale;

[dgozman, 2017/01/12 21:49:35]

Use Size instead of width+height.

[ahmetemirercin, 2017/01/13 01:49:23]

Done.

+
     var pageHeight = screenSize.height - insets.top - insets.bottom;
+    this._emulatedPageHeight = pageHeight * scale;
 
     var positionX = insets.left;
     var positionY = insets.top;
@@ -596,6 +608,10 @@ Emulation.DeviceModeModel = class {
     }
   }
 
+  resetVisibleSize() {
+    this._target.emulationAgent().setVisibleSize(this._emulatedPageWidth, this._emulatedPageHeight);

[dgozman, 2017/01/12 21:49:35]

If we reset not by passing zeroes, let's not change emulation_handler. 

Passing zero there should only reset to original. We don't really need it for
"not changing the size".

[ahmetemirercin, 2017/01/13 01:49:23]

Done.

+  }
+
   _deviceMetricsOverrideAppliedForTest() {
     // Used for sniffing in tests.
   }