Respect prefs::kAllowDeletingBrowserHistory in the Clear History UI on Android.

chrome/android/java/strings/android_chrome_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 <grit current_release="1" latest_public_release="0">
   <outputs>
     <output filename="values-am/android_chrome_strings.xml" lang="am" type="android" />
     <output filename="values-ar/android_chrome_strings.xml" lang="ar" type="android" />
     <output filename="values-bg/android_chrome_strings.xml" lang="bg" type="android" />
     <output filename="values-ca/android_chrome_strings.xml" lang="ca" type="android" />
     <output filename="values-cs/android_chrome_strings.xml" lang="cs" type="android" />
     <output filename="values-da/android_chrome_strings.xml" lang="da" type="android" />
     <output filename="values-de/android_chrome_strings.xml" lang="de" type="android" />
@@ skipping 339 matching lines @@
       </message>
       <message name="IDS_CLEAR_BROWSING_DATA_PROGRESS_TITLE" desc='Title for the progress dialog used when waiting for "clear browsing data" to complete.'>
         Clearing browsing data
       </message>
       <message name="IDS_CLEAR_DATA_DELETE" desc="Button that allows the user to clear their browsing data. [CHAR-LIMIT=20]">
         Clear
       </message>
       <message name="IDS_CLEAR_BROWSING_DATA_PROGRESS_MESSAGE" desc='Message on the progress dialog used when waiting for "clear browsing data" to complete.'>
         Please wait…
       </message>
+      <message name="IDS_CAN_NOT_CLEAR_BROWSING_HISTORY_TOAST" desc='Message on the toast explaining that the user cannot "clear browsing history".'>

[Bernhard Bauer, 2015/03/03 14:26:21]

No quotes for "clear browsing history". We should probably also use double
quotes for the description. (Up to you whether you want to change that for the
messages above as well.)

[knn, 2015/03/03 15:03:43]

You mean quotes around "clear browsing data" in the previous strings are also
not required? I'll update them as well unless this is a grit style hint for
translators.

[Bernhard Bauer, 2015/03/03 15:25:29]

In the other strings, "clear browsing data" names the action that is currently
happening. In this string, you are adding quotes around parts of the sentence
(which makes it seem like you're quoting something, or browsing history isn't
really cleared).

As a test, in the descriptions above, you could replace the words in quotes with
the name of something else (e.g. "[...] when waiting for the Olympic Games to
complete"), and it would still make (at least grammatical) sense. You can't do
that with this sentence.

The thing I was refering to with the strings above is that they use single
quotes for the overall description (presumably because double quotes are already
used in the description). The right thing to do there IMO would be to use double
quotes, and escape the quotes inside. But like I said, up to you whether you
want to do that, or leave it as it is.

[knn, 2015/03/03 15:55:57]

Thanks for explaining. I think this inconsistency is more readable so I'll leave
it as it is.

+        You can not delete your browsing history.
+      </message>
 
       <!-- Accessibility preferences -->
       <message name="IDS_PREFS_ACCESSIBILITY" desc="Title of Accessibility settings, which allows the user to change webpage font sizes. [CHAR-LIMIT=32]">
         Accessibility
       </message>
       <message name="IDS_FONT_SIZE" desc="Title for font size preference.">
         Text scaling
       </message>
       <message name="IDS_FONT_SIZE_PREVIEW_TEXT" desc="Preview text for font-size slider.">
         Drag the slider until you can read this comfortably. Text should look at least this big after double-tapping on a paragraph.
@@ skipping 932 matching lines @@
       <message name="IDS_FRE_SIGNED_IN_DESCRIPTION_UCA_ADDENDUM" desc="Additional explanation for child accounts that synced settings are managed by parents.">
         Your parents help manage these settings.
       </message>
       <message name="IDS_ACCESSIBILITY_FRE_ACCOUNT_SPINNER" desc="Content description for the first run account drop down spinner.">
         Choose account
       </message>
 
     </messages>
   </release>
 </grit>