DevTools: expose last composited frame metadata on RenderWidgetHostViewPort.

content/browser/devtools/devtools_protocol_constants.cc

Index: content/browser/devtools/devtools_protocol_constants.cc
diff --git a/content/browser/devtools/devtools_protocol_constants.cc b/content/browser/devtools/devtools_protocol_constants.cc
index b25c5c88a36981b28a9a1867b647a501070bec79..fd10b2cebb2fa2ca4e3c103aafcec1bd81f3090f 100644
--- a/content/browser/devtools/devtools_protocol_constants.cc
+++ b/content/browser/devtools/devtools_protocol_constants.cc
@@ -55,6 +55,15 @@ namespace targetCrashed {
 
 namespace Page {
 
+const char kData[] = "data";
+const char kDeviceScaleFactor[] = "deviceScaleFactor";
+const char kPageScaleFactor[] = "pageScaleFactor";
+const char kScrollLeft[] = "scrollLeft";
+const char kScrollTop[] = "scrollTop";
+const char kViewport[] = "viewport";
+const char kViewportWidth[] = "width";
+const char kViewportHeight[] = "height";
+
 namespace disable {
   const char kName[] = "Page.disable";
 }  // disable
@@ -75,7 +84,6 @@ namespace captureScreenshot {
   const char kParamFormat[] = "format";
   const char kParamQuality[] = "quality";
   const char kParamScale[] = "scale";
-  const char kResponseData[] = "data";
 }  // captureScreenshot
 
 namespace startScreencast {
@@ -91,7 +99,6 @@ namespace stopScreencast {
 
 namespace screencastFrame {
   const char kName[] = "Page.screencastFrame";
-  const char kResponseData[] = "data";
 }  // screencastFrame
 
 }  // Page