DevTools: Allow PageUp to fall through text editor

third_party/WebKit/Source/devtools/front_end/text_editor/cmdevtools.css

Index: third_party/WebKit/Source/devtools/front_end/text_editor/cmdevtools.css
diff --git a/third_party/WebKit/Source/devtools/front_end/text_editor/cmdevtools.css b/third_party/WebKit/Source/devtools/front_end/text_editor/cmdevtools.css
index b4ac42a33987ed5028159b8fc1a31e1b09aeac51..e3966e7317997e390ff63d691b46a363aead9d35 100644
--- a/third_party/WebKit/Source/devtools/front_end/text_editor/cmdevtools.css
+++ b/third_party/WebKit/Source/devtools/front_end/text_editor/cmdevtools.css
@@ -357,6 +357,12 @@
     background-color: #454545;
 }
 
-.CodeMirror .auto-complete-text{
+.CodeMirror .auto-complete-text {
     color: rgb(128,128,128);
 }
+
+/** Prevent the codemirror textarea from stealing PageUp events **/
+.CodeMirror textarea {
+    resize: none;
+    overflow: hidden;
+}